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27
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UK lawmakers: Facebook 'intentionally and knowingly' violated data privacy laws

UK lawmakers have accused Facebook of violating data privacy and competition laws in a report on social media disinformation that also says CEO Mark Zuckerberg showed "contempt" toward parliament
world,facebook submitted 8 years ago ago by b8c40ad899c64f9a88cfca87d90e5c34
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UK lawmakers have accused Facebook of violating data privacy and competition laws in a report on social media disinformation that also says CEO Mark Zuckerberg showed "contempt" toward parliament by not appearing before them.

The UK Digital, Culture, Media and Sport Committee said in a report published Monday that a trove of internal Facebook emails it reviewed demonstrated that the social media platform had "intentionally and knowingly" violated both data privacy and competition laws.

According to the committee, the documents show that Facebook was "willing to override its users' privacy settings in order to transfer data" to app developers. The lawmakers also claim the documents show the social network was able to "starve" some developers of data and force them out of business.

"Companies like Facebook should not be allowed to behave like 'digital gangsters' in the online world, considering themselves to be ahead of and beyond the law," the report said.

In response to the report, Facebook said it had not breached data protection or competition laws. Karim Palant, Facebook's UK public policy manager, said in a statement that the company "supports effective privacy legislation" and is also open to "meaningful regulation."

Overhaul needed

While Facebook was a major focus of the report, the Digital, Culture, Media and Sport Committee made several recommendations on how to combat fake news and disinformation.

The committee said:

  • Social media platforms should be subject to a compulsory code of ethics.
  • An independent UK regulator should monitor tech companies, and be able to launch legal proceedings against them.
  • UK antitrust regulators should conduct a "comprehensive audit" of the advertising market on social media.
  • UK regulators should investigate whether Facebook has been involved in anti-competitive practices.
  • The government should examine recent elections for evidence of voter manipulation.

The committee's investigation lasted 18 months and featured nearly two dozen oral evidence sessions, including a special hearing in Washington, D.C. and an "international grand committee" attended by representatives of nine countries. The final report ran to over 100 pages.

"The big tech companies must not be allowed to expand exponentially, without constraint or proper regulatory oversight," the report stated. "Only governments and the law are powerful enough to contain them."

Target: Facebook

The report harshly criticized Facebook and Zuckerberg, who repeatedly refused to appear before the committee last year despite numerous requests.

"The management structure of Facebook is opaque to those outside the business and this seemed to be designed to conceal knowledge of and responsibility for specific decisions," the report said. "Facebook used the strategy of sending witnesses who they said were the most appropriate representatives, yet had not been properly briefed on crucial issues, and could not or chose not to answer many of our questions."

The report's authors said they had "no doubt that this strategy was deliberate."

Facebook's response

Palant, the Facebook public policy manager, said that the company shares the committee's "concerns about false news and election integrity" and that it had made "a significant contribution to their investigation" by answering more than 700 questions.

Palant also highlighted the "substantial changes" to political advertising standards the company has undertaken.

"No other channel for political advertising is as transparent and offers the tools that we do," said Palant. "We have tripled the size of the team working to detect and protect users from bad content to 30,000 people and invested heavily in machine learning, artificial intelligence and computer vision technology to help prevent this type of abuse."

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var canvas = document.getElementById("canvas"), ctx = canvas.getContext("2d"), img = new Image(), effectEl = document.getElementById("effect"), settings = { radius: 4, intensity: 25, ApplyFilter: function() { doOilPaintEffect(); } } img.addEventListener('load', function() { // reduced the size by half for pen and performance. canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }); img.crossOrigin = "Anonymous"; img.src = "https://login.reddah.com/uploadPhoto/5a28b388b6db4efea5656f2670acd937_reddah_preview.jpg"; //"https://wow.techbrood.com/uploads/161001/normal2.jpg"; //var gui = new dat.GUI(); //gui.add(settings, 'intensity'); //gui.add(settings, 'radius'); //gui.add(settings, 'ApplyFilter'); function doOilPaintEffect() { oilPaintEffect(canvas, settings.radius, settings.intensity); } function oilPaintEffect(canvas, radius, intensity) { var width = canvas.width, height = canvas.height, imgData = ctx.getImageData(0, 0, width, height), pixData = imgData.data, // change to createElement getting added element just for the demo destCanvas = document.getElementById("dest-canvas"), dCtx = destCanvas.getContext("2d"), pixelIntensityCount = []; destCanvas.width = width; destCanvas.height = height; var destImageData = dCtx.createImageData(width, height), destPixData = destImageData.data, intensityLUT = [], rgbLUT = []; for (var y = 0; y < height; y++) { intensityLUT[y] = []; rgbLUT[y] = []; for (var x = 0; x < width; x++) { var idx = (y * width + x) * 4, r = pixData[idx], g = pixData[idx + 1], b = pixData[idx + 2], avg = (r + g + b) / 3; intensityLUT[y][x] = Math.round((avg * intensity) / 255); rgbLUT[y][x] = { r: r, g: g, b: b }; } } for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { pixelIntensityCount = []; // Find intensities of nearest pixels within radius. for (var yy = -radius; yy <= radius; yy++) { for (var xx = -radius; xx <= radius; xx++) { if (y + yy > 0 && y + yy < height && x + xx > 0 && x + xx < width) { var intensityVal = intensityLUT[y + yy][x + xx]; if (!pixelIntensityCount[intensityVal]) { pixelIntensityCount[intensityVal] = { val: 1, r: rgbLUT[y + yy][x + xx].r, g: rgbLUT[y + yy][x + xx].g, b: rgbLUT[y + yy][x + xx].b } } else { pixelIntensityCount[intensityVal].val++; pixelIntensityCount[intensityVal].r += rgbLUT[y + yy][x + xx].r; pixelIntensityCount[intensityVal].g += rgbLUT[y + yy][x + xx].g; pixelIntensityCount[intensityVal].b += rgbLUT[y + yy][x + xx].b; } } } } pixelIntensityCount.sort(function(a, b) { return b.val - a.val; }); var curMax = pixelIntensityCount[0].val, dIdx = (y * width + x) * 4; destPixData[dIdx] = ~~(pixelIntensityCount[0].r / curMax); destPixData[dIdx + 1] = ~~(pixelIntensityCount[0].g / curMax); destPixData[dIdx + 2] = ~~(pixelIntensityCount[0].b / curMax); destPixData[dIdx + 3] = 255; } } // change this to ctx to instead put the data on the original canvas dCtx.putImageData(destImageData, 0, 0); } window["reddahApi"].loadCompleted()

body { text-align: center; background: #ececec; font-family: Tahoma, Geneva, sans-serif } section { display: inline-block } canvas { border: 1px solid #000 }
submitted 7 years ago ago by 1b54d14be50240948fc53b199a461f52
0 comments
picture

Original

仿PS油画滤镜特效

31
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var canvas = document.getElementById("canvas"), ctx = canvas.getContext("2d"), img = new Image(), effectEl = document.getElementById("effect"), settings = { radius: 4, intensity: 25, ApplyFilter: function() { doOilPaintEffect(); } } img.addEventListener('load', function() { // reduced the size by half for pen and performance. canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }); function choosePhoto(){ alert(1) window["reddahApi"].album().then(data=>{ alert(data) }) } img.crossOrigin = "Anonymous"; img.src = "assets/500/501.jpeg"; //"https://wow.techbrood.com/uploads/161001/normal2.jpg"; //var gui = new dat.GUI(); //gui.add(settings, 'intensity'); //gui.add(settings, 'radius'); //gui.add(settings, 'ApplyFilter'); function doOilPaintEffect() { oilPaintEffect(canvas, settings.radius, settings.intensity); } function oilPaintEffect(canvas, radius, intensity) { var width = canvas.width, height = canvas.height, imgData = ctx.getImageData(0, 0, width, height), pixData = imgData.data, // change to createElement getting added element just for the demo destCanvas = document.getElementById("dest-canvas"), dCtx = destCanvas.getContext("2d"), pixelIntensityCount = []; destCanvas.width = width; destCanvas.height = height; var destImageData = dCtx.createImageData(width, height), destPixData = destImageData.data, intensityLUT = [], rgbLUT = []; for (var y = 0; y < height; y++) { intensityLUT[y] = []; rgbLUT[y] = []; for (var x = 0; x < width; x++) { var idx = (y * width + x) * 4, r = pixData[idx], g = pixData[idx + 1], b = pixData[idx + 2], avg = (r + g + b) / 3; intensityLUT[y][x] = Math.round((avg * intensity) / 255); rgbLUT[y][x] = { r: r, g: g, b: b }; } } for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { pixelIntensityCount = []; // Find intensities of nearest pixels within radius. for (var yy = -radius; yy <= radius; yy++) { for (var xx = -radius; xx <= radius; xx++) { if (y + yy > 0 && y + yy < height && x + xx > 0 && x + xx < width) { var intensityVal = intensityLUT[y + yy][x + xx]; if (!pixelIntensityCount[intensityVal]) { pixelIntensityCount[intensityVal] = { val: 1, r: rgbLUT[y + yy][x + xx].r, g: rgbLUT[y + yy][x + xx].g, b: rgbLUT[y + yy][x + xx].b } } else { pixelIntensityCount[intensityVal].val++; pixelIntensityCount[intensityVal].r += rgbLUT[y + yy][x + xx].r; pixelIntensityCount[intensityVal].g += rgbLUT[y + yy][x + xx].g; pixelIntensityCount[intensityVal].b += rgbLUT[y + yy][x + xx].b; } } } } pixelIntensityCount.sort(function(a, b) { return b.val - a.val; }); var curMax = pixelIntensityCount[0].val, dIdx = (y * width + x) * 4; destPixData[dIdx] = ~~(pixelIntensityCount[0].r / curMax); destPixData[dIdx + 1] = ~~(pixelIntensityCount[0].g / curMax); destPixData[dIdx + 2] = ~~(pixelIntensityCount[0].b / curMax); destPixData[dIdx + 3] = 255; } } // change this to ctx to instead put the data on the original canvas dCtx.putImageData(destImageData, 0, 0); } window["reddahApi"].loadCompleted()

body { text-align: center; background: #ececec; font-family: Tahoma, Geneva, sans-serif } section { display: inline-block } canvas { border: 1px solid #000 }
submitted 7 years ago ago by 1b54d14be50240948fc53b199a461f52
0 comments
picture

Original

仿PS油画滤镜特效


33
up vote 0 down vote

var canvas = document.getElementById("canvas"), ctx = canvas.getContext("2d"), img = new Image(), effectEl = document.getElementById("effect"), settings = { radius: 4, intensity: 25, ApplyFilter: function() { doOilPaintEffect(); } } img.addEventListener('load', function() { // reduced the size by half for pen and performance. canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }); function choosePhoto(){ alert(1) window["reddahApi"].album().then(data=>{ alert(data) img.src=data; }) } img.crossOrigin = "Anonymous"; img.src = "assets/500/501.jpeg"; //"https://wow.techbrood.com/uploads/161001/normal2.jpg"; //var gui = new dat.GUI(); //gui.add(settings, 'intensity'); //gui.add(settings, 'radius'); //gui.add(settings, 'ApplyFilter'); function doOilPaintEffect() { oilPaintEffect(canvas, settings.radius, settings.intensity); } function oilPaintEffect(canvas, radius, intensity) { var width = canvas.width, height = canvas.height, imgData = ctx.getImageData(0, 0, width, height), pixData = imgData.data, // change to createElement getting added element just for the demo destCanvas = document.getElementById("dest-canvas"), dCtx = destCanvas.getContext("2d"), pixelIntensityCount = []; destCanvas.width = width; destCanvas.height = height; var destImageData = dCtx.createImageData(width, height), destPixData = destImageData.data, intensityLUT = [], rgbLUT = []; for (var y = 0; y < height; y++) { intensityLUT[y] = []; rgbLUT[y] = []; for (var x = 0; x < width; x++) { var idx = (y * width + x) * 4, r = pixData[idx], g = pixData[idx + 1], b = pixData[idx + 2], avg = (r + g + b) / 3; intensityLUT[y][x] = Math.round((avg * intensity) / 255); rgbLUT[y][x] = { r: r, g: g, b: b }; } } for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { pixelIntensityCount = []; // Find intensities of nearest pixels within radius. for (var yy = -radius; yy <= radius; yy++) { for (var xx = -radius; xx <= radius; xx++) { if (y + yy > 0 && y + yy < height && x + xx > 0 && x + xx < width) { var intensityVal = intensityLUT[y + yy][x + xx]; if (!pixelIntensityCount[intensityVal]) { pixelIntensityCount[intensityVal] = { val: 1, r: rgbLUT[y + yy][x + xx].r, g: rgbLUT[y + yy][x + xx].g, b: rgbLUT[y + yy][x + xx].b } } else { pixelIntensityCount[intensityVal].val++; pixelIntensityCount[intensityVal].r += rgbLUT[y + yy][x + xx].r; pixelIntensityCount[intensityVal].g += rgbLUT[y + yy][x + xx].g; pixelIntensityCount[intensityVal].b += rgbLUT[y + yy][x + xx].b; } } } } pixelIntensityCount.sort(function(a, b) { return b.val - a.val; }); var curMax = pixelIntensityCount[0].val, dIdx = (y * width + x) * 4; destPixData[dIdx] = ~~(pixelIntensityCount[0].r / curMax); destPixData[dIdx + 1] = ~~(pixelIntensityCount[0].g / curMax); destPixData[dIdx + 2] = ~~(pixelIntensityCount[0].b / curMax); destPixData[dIdx + 3] = 255; } } // change this to ctx to instead put the data on the original canvas dCtx.putImageData(destImageData, 0, 0); } window["reddahApi"].loadCompleted()

body { text-align: center; background: #ececec; font-family: Tahoma, Geneva, sans-serif } section { display: inline-block } canvas { border: 1px solid #000 }
submitted 7 years ago ago by 1b54d14be50240948fc53b199a461f52
0 comments
picture

Original

仿PS油画滤镜特效


35
up vote 0 down vote

var canvas = document.getElementById("canvas"), ctx = canvas.getContext("2d"), img = new Image(), effectEl = document.getElementById("effect"), settings = { radius: 4, intensity: 25, ApplyFilter: function() { doOilPaintEffect(); } } img.addEventListener('load', function() { // reduced the size by half for pen and performance. canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }); function choosePhoto(){ alert(1) window["reddahApi"].album().then(data=>{ alert(data) img.src=data; doOilPaintEffect(); }) } img.crossOrigin = "Anonymous"; img.src = "assets/500/501.jpeg"; //"https://wow.techbrood.com/uploads/161001/normal2.jpg"; //var gui = new dat.GUI(); //gui.add(settings, 'intensity'); //gui.add(settings, 'radius'); //gui.add(settings, 'ApplyFilter'); function doOilPaintEffect() { oilPaintEffect(canvas, settings.radius, settings.intensity); } function oilPaintEffect(canvas, radius, intensity) { var width = canvas.width, height = canvas.height, imgData = ctx.getImageData(0, 0, width, height), pixData = imgData.data, // change to createElement getting added element just for the demo destCanvas = document.getElementById("dest-canvas"), dCtx = destCanvas.getContext("2d"), pixelIntensityCount = []; destCanvas.width = width; destCanvas.height = height; var destImageData = dCtx.createImageData(width, height), destPixData = destImageData.data, intensityLUT = [], rgbLUT = []; for (var y = 0; y < height; y++) { intensityLUT[y] = []; rgbLUT[y] = []; for (var x = 0; x < width; x++) { var idx = (y * width + x) * 4, r = pixData[idx], g = pixData[idx + 1], b = pixData[idx + 2], avg = (r + g + b) / 3; intensityLUT[y][x] = Math.round((avg * intensity) / 255); rgbLUT[y][x] = { r: r, g: g, b: b }; } } for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { pixelIntensityCount = []; // Find intensities of nearest pixels within radius. for (var yy = -radius; yy <= radius; yy++) { for (var xx = -radius; xx <= radius; xx++) { if (y + yy > 0 && y + yy < height && x + xx > 0 && x + xx < width) { var intensityVal = intensityLUT[y + yy][x + xx]; if (!pixelIntensityCount[intensityVal]) { pixelIntensityCount[intensityVal] = { val: 1, r: rgbLUT[y + yy][x + xx].r, g: rgbLUT[y + yy][x + xx].g, b: rgbLUT[y + yy][x + xx].b } } else { pixelIntensityCount[intensityVal].val++; pixelIntensityCount[intensityVal].r += rgbLUT[y + yy][x + xx].r; pixelIntensityCount[intensityVal].g += rgbLUT[y + yy][x + xx].g; pixelIntensityCount[intensityVal].b += rgbLUT[y + yy][x + xx].b; } } } } pixelIntensityCount.sort(function(a, b) { return b.val - a.val; }); var curMax = pixelIntensityCount[0].val, dIdx = (y * width + x) * 4; destPixData[dIdx] = ~~(pixelIntensityCount[0].r / curMax); destPixData[dIdx + 1] = ~~(pixelIntensityCount[0].g / curMax); destPixData[dIdx + 2] = ~~(pixelIntensityCount[0].b / curMax); destPixData[dIdx + 3] = 255; } } // change this to ctx to instead put the data on the original canvas dCtx.putImageData(destImageData, 0, 0); } window["reddahApi"].loadCompleted()

body { text-align: center; background: #ececec; font-family: Tahoma, Geneva, sans-serif } section { display: inline-block } canvas { border: 1px solid #000 }
submitted 7 years ago ago by 1b54d14be50240948fc53b199a461f52
0 comments
picture

Original

仿PS油画滤镜特效


36
up vote 0 down vote

var canvas = document.getElementById("canvas"), ctx = canvas.getContext("2d"), img = new Image(), effectEl = document.getElementById("effect"), settings = { radius: 4, intensity: 25, ApplyFilter: function() { doOilPaintEffect(); } } img.addEventListener('load', function() { // reduced the size by half for pen and performance. canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }); function choosePhoto(){ window["reddahApi"].album().then(data=>{ alert(data) data=data.replace("file://",""); img.src=data; doOilPaintEffect(); alert(2) }) } img.crossOrigin = "Anonymous"; img.src = "assets/500/501.jpeg"; //"https://wow.techbrood.com/uploads/161001/normal2.jpg"; //var gui = new dat.GUI(); //gui.add(settings, 'intensity'); //gui.add(settings, 'radius'); //gui.add(settings, 'ApplyFilter'); function doOilPaintEffect() { oilPaintEffect(canvas, settings.radius, settings.intensity); } function oilPaintEffect(canvas, radius, intensity) { var width = canvas.width, height = canvas.height, imgData = ctx.getImageData(0, 0, width, height), pixData = imgData.data, // change to createElement getting added element just for the demo destCanvas = document.getElementById("dest-canvas"), dCtx = destCanvas.getContext("2d"), pixelIntensityCount = []; destCanvas.width = width; destCanvas.height = height; var destImageData = dCtx.createImageData(width, height), destPixData = destImageData.data, intensityLUT = [], rgbLUT = []; for (var y = 0; y < height; y++) { intensityLUT[y] = []; rgbLUT[y] = []; for (var x = 0; x < width; x++) { var idx = (y * width + x) * 4, r = pixData[idx], g = pixData[idx + 1], b = pixData[idx + 2], avg = (r + g + b) / 3; intensityLUT[y][x] = Math.round((avg * intensity) / 255); rgbLUT[y][x] = { r: r, g: g, b: b }; } } for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { pixelIntensityCount = []; // Find intensities of nearest pixels within radius. for (var yy = -radius; yy <= radius; yy++) { for (var xx = -radius; xx <= radius; xx++) { if (y + yy > 0 && y + yy < height && x + xx > 0 && x + xx < width) { var intensityVal = intensityLUT[y + yy][x + xx]; if (!pixelIntensityCount[intensityVal]) { pixelIntensityCount[intensityVal] = { val: 1, r: rgbLUT[y + yy][x + xx].r, g: rgbLUT[y + yy][x + xx].g, b: rgbLUT[y + yy][x + xx].b } } else { pixelIntensityCount[intensityVal].val++; pixelIntensityCount[intensityVal].r += rgbLUT[y + yy][x + xx].r; pixelIntensityCount[intensityVal].g += rgbLUT[y + yy][x + xx].g; pixelIntensityCount[intensityVal].b += rgbLUT[y + yy][x + xx].b; } } } } pixelIntensityCount.sort(function(a, b) { return b.val - a.val; }); var curMax = pixelIntensityCount[0].val, dIdx = (y * width + x) * 4; destPixData[dIdx] = ~~(pixelIntensityCount[0].r / curMax); destPixData[dIdx + 1] = ~~(pixelIntensityCount[0].g / curMax); destPixData[dIdx + 2] = ~~(pixelIntensityCount[0].b / curMax); destPixData[dIdx + 3] = 255; } } // change this to ctx to instead put the data on the original canvas dCtx.putImageData(destImageData, 0, 0); } window["reddahApi"].loadCompleted()

body { text-align: center; background: #ececec; font-family: Tahoma, Geneva, sans-serif } section { display: inline-block } canvas { border: 1px solid #000 }
submitted 7 years ago ago by 1b54d14be50240948fc53b199a461f52
0 comments
picture

Original

仿PS油画滤镜特效


38
up vote 0 down vote

var canvas = document.getElementById("canvas"), ctx = canvas.getContext("2d"), img = new Image(), effectEl = document.getElementById("effect"), settings = { radius: 4, intensity: 25, ApplyFilter: function() { doOilPaintEffect(); } } img.addEventListener('load', function() { // reduced the size by half for pen and performance. canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }); function choosePhoto(){ window["reddahApi"].album().then(data=>{ alert(data) data=data.replace("file://",""); img.src=data; canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); alert(2) }) } img.crossOrigin = "Anonymous"; img.src = "assets/500/501.jpeg"; //"https://wow.techbrood.com/uploads/161001/normal2.jpg"; //var gui = new dat.GUI(); //gui.add(settings, 'intensity'); //gui.add(settings, 'radius'); //gui.add(settings, 'ApplyFilter'); function doOilPaintEffect() { oilPaintEffect(canvas, settings.radius, settings.intensity); } function oilPaintEffect(canvas, radius, intensity) { var width = canvas.width, height = canvas.height, imgData = ctx.getImageData(0, 0, width, height), pixData = imgData.data, // change to createElement getting added element just for the demo destCanvas = document.getElementById("dest-canvas"), dCtx = destCanvas.getContext("2d"), pixelIntensityCount = []; destCanvas.width = width; destCanvas.height = height; var destImageData = dCtx.createImageData(width, height), destPixData = destImageData.data, intensityLUT = [], rgbLUT = []; for (var y = 0; y < height; y++) { intensityLUT[y] = []; rgbLUT[y] = []; for (var x = 0; x < width; x++) { var idx = (y * width + x) * 4, r = pixData[idx], g = pixData[idx + 1], b = pixData[idx + 2], avg = (r + g + b) / 3; intensityLUT[y][x] = Math.round((avg * intensity) / 255); rgbLUT[y][x] = { r: r, g: g, b: b }; } } for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { pixelIntensityCount = []; // Find intensities of nearest pixels within radius. for (var yy = -radius; yy <= radius; yy++) { for (var xx = -radius; xx <= radius; xx++) { if (y + yy > 0 && y + yy < height && x + xx > 0 && x + xx < width) { var intensityVal = intensityLUT[y + yy][x + xx]; if (!pixelIntensityCount[intensityVal]) { pixelIntensityCount[intensityVal] = { val: 1, r: rgbLUT[y + yy][x + xx].r, g: rgbLUT[y + yy][x + xx].g, b: rgbLUT[y + yy][x + xx].b } } else { pixelIntensityCount[intensityVal].val++; pixelIntensityCount[intensityVal].r += rgbLUT[y + yy][x + xx].r; pixelIntensityCount[intensityVal].g += rgbLUT[y + yy][x + xx].g; pixelIntensityCount[intensityVal].b += rgbLUT[y + yy][x + xx].b; } } } } pixelIntensityCount.sort(function(a, b) { return b.val - a.val; }); var curMax = pixelIntensityCount[0].val, dIdx = (y * width + x) * 4; destPixData[dIdx] = ~~(pixelIntensityCount[0].r / curMax); destPixData[dIdx + 1] = ~~(pixelIntensityCount[0].g / curMax); destPixData[dIdx + 2] = ~~(pixelIntensityCount[0].b / curMax); destPixData[dIdx + 3] = 255; } } // change this to ctx to instead put the data on the original canvas dCtx.putImageData(destImageData, 0, 0); } window["reddahApi"].loadCompleted()

body { text-align: center; background: #ececec; font-family: Tahoma, Geneva, sans-serif } section { display: inline-block } canvas { border: 1px solid #000 }
submitted 7 years ago ago by 1b54d14be50240948fc53b199a461f52
0 comments
picture

Original

仿PS油画滤镜特效


42
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var canvas = document.getElementById("canvas"), ctx = canvas.getContext("2d"), img = new Image(), effectEl = document.getElementById("effect"), settings = { radius: 4, intensity: 25, ApplyFilter: function() { doOilPaintEffect(); } } img.addEventListener('load', function() { // reduced the size by half for pen and performance. canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }); function choosePhoto(){ window["reddahApi"].album().then(data=>{ img.src=data; canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); alert(3) }) } img.crossOrigin = "Anonymous"; img.src = "assets/500/501.jpeg"; //"https://wow.techbrood.com/uploads/161001/normal2.jpg"; //var gui = new dat.GUI(); //gui.add(settings, 'intensity'); //gui.add(settings, 'radius'); //gui.add(settings, 'ApplyFilter'); function doOilPaintEffect() { oilPaintEffect(canvas, settings.radius, settings.intensity); } function oilPaintEffect(canvas, radius, intensity) { var width = canvas.width, height = canvas.height, imgData = ctx.getImageData(0, 0, width, height), pixData = imgData.data, // change to createElement getting added element just for the demo destCanvas = document.getElementById("dest-canvas"), dCtx = destCanvas.getContext("2d"), pixelIntensityCount = []; destCanvas.width = width; destCanvas.height = height; var destImageData = dCtx.createImageData(width, height), destPixData = destImageData.data, intensityLUT = [], rgbLUT = []; for (var y = 0; y < height; y++) { intensityLUT[y] = []; rgbLUT[y] = []; for (var x = 0; x < width; x++) { var idx = (y * width + x) * 4, r = pixData[idx], g = pixData[idx + 1], b = pixData[idx + 2], avg = (r + g + b) / 3; intensityLUT[y][x] = Math.round((avg * intensity) / 255); rgbLUT[y][x] = { r: r, g: g, b: b }; } } for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { pixelIntensityCount = []; // Find intensities of nearest pixels within radius. for (var yy = -radius; yy <= radius; yy++) { for (var xx = -radius; xx <= radius; xx++) { if (y + yy > 0 && y + yy < height && x + xx > 0 && x + xx < width) { var intensityVal = intensityLUT[y + yy][x + xx]; if (!pixelIntensityCount[intensityVal]) { pixelIntensityCount[intensityVal] = { val: 1, r: rgbLUT[y + yy][x + xx].r, g: rgbLUT[y + yy][x + xx].g, b: rgbLUT[y + yy][x + xx].b } } else { pixelIntensityCount[intensityVal].val++; pixelIntensityCount[intensityVal].r += rgbLUT[y + yy][x + xx].r; pixelIntensityCount[intensityVal].g += rgbLUT[y + yy][x + xx].g; pixelIntensityCount[intensityVal].b += rgbLUT[y + yy][x + xx].b; } } } } pixelIntensityCount.sort(function(a, b) { return b.val - a.val; }); var curMax = pixelIntensityCount[0].val, dIdx = (y * width + x) * 4; destPixData[dIdx] = ~~(pixelIntensityCount[0].r / curMax); destPixData[dIdx + 1] = ~~(pixelIntensityCount[0].g / curMax); destPixData[dIdx + 2] = ~~(pixelIntensityCount[0].b / curMax); destPixData[dIdx + 3] = 255; } } // change this to ctx to instead put the data on the original canvas dCtx.putImageData(destImageData, 0, 0); } window["reddahApi"].loadCompleted()

body { text-align: center; background: #ececec; font-family: Tahoma, Geneva, sans-serif } section { display: inline-block } canvas { border: 1px solid #000 }
submitted 7 years ago ago by 1b54d14be50240948fc53b199a461f52
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Original

仿PS油画滤镜特效


43
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var canvas = document.getElementById("canvas"), ctx = canvas.getContext("2d"), img = new Image(), effectEl = document.getElementById("effect"), settings = { radius: 4, intensity: 25, ApplyFilter: function() { doOilPaintEffect(); } } img.addEventListener('load', function() { // reduced the size by half for pen and performance. canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }); function choosePhoto(){ window["reddahApi"].album().then(data=>{ alert(data) img.src=data.replace("file:///","http://localhost:8080/_app_file_"); alert(img.src) alert(3) canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); alert(3) }) } img.crossOrigin = "Anonymous"; img.src = "assets/500/501.jpeg"; //"https://wow.techbrood.com/uploads/161001/normal2.jpg"; //var gui = new dat.GUI(); //gui.add(settings, 'intensity'); //gui.add(settings, 'radius'); //gui.add(settings, 'ApplyFilter'); function doOilPaintEffect() { oilPaintEffect(canvas, settings.radius, settings.intensity); } function oilPaintEffect(canvas, radius, intensity) { var width = canvas.width, height = canvas.height, imgData = ctx.getImageData(0, 0, width, height), pixData = imgData.data, // change to createElement getting added element just for the demo destCanvas = document.getElementById("dest-canvas"), dCtx = destCanvas.getContext("2d"), pixelIntensityCount = []; destCanvas.width = width; destCanvas.height = height; var destImageData = dCtx.createImageData(width, height), destPixData = destImageData.data, intensityLUT = [], rgbLUT = []; for (var y = 0; y < height; y++) { intensityLUT[y] = []; rgbLUT[y] = []; for (var x = 0; x < width; x++) { var idx = (y * width + x) * 4, r = pixData[idx], g = pixData[idx + 1], b = pixData[idx + 2], avg = (r + g + b) / 3; intensityLUT[y][x] = Math.round((avg * intensity) / 255); rgbLUT[y][x] = { r: r, g: g, b: b }; } } for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { pixelIntensityCount = []; // Find intensities of nearest pixels within radius. for (var yy = -radius; yy <= radius; yy++) { for (var xx = -radius; xx <= radius; xx++) { if (y + yy > 0 && y + yy < height && x + xx > 0 && x + xx < width) { var intensityVal = intensityLUT[y + yy][x + xx]; if (!pixelIntensityCount[intensityVal]) { pixelIntensityCount[intensityVal] = { val: 1, r: rgbLUT[y + yy][x + xx].r, g: rgbLUT[y + yy][x + xx].g, b: rgbLUT[y + yy][x + xx].b } } else { pixelIntensityCount[intensityVal].val++; pixelIntensityCount[intensityVal].r += rgbLUT[y + yy][x + xx].r; pixelIntensityCount[intensityVal].g += rgbLUT[y + yy][x + xx].g; pixelIntensityCount[intensityVal].b += rgbLUT[y + yy][x + xx].b; } } } } pixelIntensityCount.sort(function(a, b) { return b.val - a.val; }); var curMax = pixelIntensityCount[0].val, dIdx = (y * width + x) * 4; destPixData[dIdx] = ~~(pixelIntensityCount[0].r / curMax); destPixData[dIdx + 1] = ~~(pixelIntensityCount[0].g / curMax); destPixData[dIdx + 2] = ~~(pixelIntensityCount[0].b / curMax); destPixData[dIdx + 3] = 255; } } // change this to ctx to instead put the data on the original canvas dCtx.putImageData(destImageData, 0, 0); } window["reddahApi"].loadCompleted()

body { text-align: center; background: #ececec; font-family: Tahoma, Geneva, sans-serif } section { display: inline-block } canvas { border: 1px solid #000 }
submitted 7 years ago ago by 1b54d14be50240948fc53b199a461f52
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picture

Original

仿PS油画滤镜特效


45
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var canvas = document.getElementById("canvas"), ctx = canvas.getContext("2d"), img = new Image(), effectEl = document.getElementById("effect"), settings = { radius: 4, intensity: 25, ApplyFilter: function() { doOilPaintEffect(); } } img.addEventListener('load', function() { // reduced the size by half for pen and performance. canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }); function choosePhoto(){ window["reddahApi"].album().then(data=>{ alert(data) img.src=data.replace("file://","http://localhost:8080/_app_file_"); alert(img.src) alert(3) canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); alert(3) }) } img.crossOrigin = "Anonymous"; img.src = "assets/500/501.jpeg"; //"https://wow.techbrood.com/uploads/161001/normal2.jpg"; //var gui = new dat.GUI(); //gui.add(settings, 'intensity'); //gui.add(settings, 'radius'); //gui.add(settings, 'ApplyFilter'); function doOilPaintEffect() { oilPaintEffect(canvas, settings.radius, settings.intensity); } function oilPaintEffect(canvas, radius, intensity) { var width = canvas.width, height = canvas.height, imgData = ctx.getImageData(0, 0, width, height), pixData = imgData.data, // change to createElement getting added element just for the demo destCanvas = document.getElementById("dest-canvas"), dCtx = destCanvas.getContext("2d"), pixelIntensityCount = []; destCanvas.width = width; destCanvas.height = height; var destImageData = dCtx.createImageData(width, height), destPixData = destImageData.data, intensityLUT = [], rgbLUT = []; for (var y = 0; y < height; y++) { intensityLUT[y] = []; rgbLUT[y] = []; for (var x = 0; x < width; x++) { var idx = (y * width + x) * 4, r = pixData[idx], g = pixData[idx + 1], b = pixData[idx + 2], avg = (r + g + b) / 3; intensityLUT[y][x] = Math.round((avg * intensity) / 255); rgbLUT[y][x] = { r: r, g: g, b: b }; } } for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { pixelIntensityCount = []; // Find intensities of nearest pixels within radius. for (var yy = -radius; yy <= radius; yy++) { for (var xx = -radius; xx <= radius; xx++) { if (y + yy > 0 && y + yy < height && x + xx > 0 && x + xx < width) { var intensityVal = intensityLUT[y + yy][x + xx]; if (!pixelIntensityCount[intensityVal]) { pixelIntensityCount[intensityVal] = { val: 1, r: rgbLUT[y + yy][x + xx].r, g: rgbLUT[y + yy][x + xx].g, b: rgbLUT[y + yy][x + xx].b } } else { pixelIntensityCount[intensityVal].val++; pixelIntensityCount[intensityVal].r += rgbLUT[y + yy][x + xx].r; pixelIntensityCount[intensityVal].g += rgbLUT[y + yy][x + xx].g; pixelIntensityCount[intensityVal].b += rgbLUT[y + yy][x + xx].b; } } } } pixelIntensityCount.sort(function(a, b) { return b.val - a.val; }); var curMax = pixelIntensityCount[0].val, dIdx = (y * width + x) * 4; destPixData[dIdx] = ~~(pixelIntensityCount[0].r / curMax); destPixData[dIdx + 1] = ~~(pixelIntensityCount[0].g / curMax); destPixData[dIdx + 2] = ~~(pixelIntensityCount[0].b / curMax); destPixData[dIdx + 3] = 255; } } // change this to ctx to instead put the data on the original canvas dCtx.putImageData(destImageData, 0, 0); } window["reddahApi"].loadCompleted()

body { text-align: center; background: #ececec; font-family: Tahoma, Geneva, sans-serif } section { display: inline-block } canvas { border: 1px solid #000 }
submitted 7 years ago ago by 1b54d14be50240948fc53b199a461f52
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picture

Original

仿PS油画滤镜特效


47
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var canvas = document.getElementById("canvas"), ctx = canvas.getContext("2d"), img = new Image(), effectEl = document.getElementById("effect"), settings = { radius: 4, intensity: 25, ApplyFilter: function() { doOilPaintEffect(); } } img.addEventListener('load', function() { // reduced the size by half for pen and performance. canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }); function choosePhoto(){ window["reddahApi"].album().then(data=>{ img.src=data.replace("file://","http://localhost:8080/_app_file_"); canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }) } img.crossOrigin = "Anonymous"; img.src = "assets/500/501.jpeg"; //"https://wow.techbrood.com/uploads/161001/normal2.jpg"; //var gui = new dat.GUI(); //gui.add(settings, 'intensity'); //gui.add(settings, 'radius'); //gui.add(settings, 'ApplyFilter'); function doOilPaintEffect() { oilPaintEffect(canvas, settings.radius, settings.intensity); } function oilPaintEffect(canvas, radius, intensity) { var width = canvas.width, height = canvas.height, imgData = ctx.getImageData(0, 0, width, height), pixData = imgData.data, // change to createElement getting added element just for the demo destCanvas = document.getElementById("dest-canvas"), dCtx = destCanvas.getContext("2d"), pixelIntensityCount = []; destCanvas.width = width; destCanvas.height = height; var destImageData = dCtx.createImageData(width, height), destPixData = destImageData.data, intensityLUT = [], rgbLUT = []; for (var y = 0; y < height; y++) { intensityLUT[y] = []; rgbLUT[y] = []; for (var x = 0; x < width; x++) { var idx = (y * width + x) * 4, r = pixData[idx], g = pixData[idx + 1], b = pixData[idx + 2], avg = (r + g + b) / 3; intensityLUT[y][x] = Math.round((avg * intensity) / 255); rgbLUT[y][x] = { r: r, g: g, b: b }; } } for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { pixelIntensityCount = []; // Find intensities of nearest pixels within radius. for (var yy = -radius; yy <= radius; yy++) { for (var xx = -radius; xx <= radius; xx++) { if (y + yy > 0 && y + yy < height && x + xx > 0 && x + xx < width) { var intensityVal = intensityLUT[y + yy][x + xx]; if (!pixelIntensityCount[intensityVal]) { pixelIntensityCount[intensityVal] = { val: 1, r: rgbLUT[y + yy][x + xx].r, g: rgbLUT[y + yy][x + xx].g, b: rgbLUT[y + yy][x + xx].b } } else { pixelIntensityCount[intensityVal].val++; pixelIntensityCount[intensityVal].r += rgbLUT[y + yy][x + xx].r; pixelIntensityCount[intensityVal].g += rgbLUT[y + yy][x + xx].g; pixelIntensityCount[intensityVal].b += rgbLUT[y + yy][x + xx].b; } } } } pixelIntensityCount.sort(function(a, b) { return b.val - a.val; }); var curMax = pixelIntensityCount[0].val, dIdx = (y * width + x) * 4; destPixData[dIdx] = ~~(pixelIntensityCount[0].r / curMax); destPixData[dIdx + 1] = ~~(pixelIntensityCount[0].g / curMax); destPixData[dIdx + 2] = ~~(pixelIntensityCount[0].b / curMax); destPixData[dIdx + 3] = 255; } } // change this to ctx to instead put the data on the original canvas dCtx.putImageData(destImageData, 0, 0); } window["reddahApi"].loadCompleted()

body { text-align: center; background: #ececec; font-family: Tahoma, Geneva, sans-serif } section { display: inline-block } canvas { border: 1px solid #000 }
submitted 7 years ago ago by 1b54d14be50240948fc53b199a461f52
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picture

Original

仿PS油画滤镜特效


48
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var canvas = document.getElementById("canvas"), ctx = canvas.getContext("2d"), img = new Image(), effectEl = document.getElementById("effect"), settings = { radius: 4, intensity: 25, ApplyFilter: function() { doOilPaintEffect(); } } img.addEventListener('load', function() { // reduced the size by half for pen and performance. canvas.width = (this.width / 2); canvas.height = (this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }); function choosePhoto(){ window["reddahApi"].album().then(data=>{ img.src=data.replace("file://","http://localhost:8080/_app_file_"); canvas.width = "90%"//(this.width / 2); canvas.height = "90%"//(this.height / 2); ctx.drawImage(this, 0, 0, canvas.width, canvas.height); doOilPaintEffect(); }) } img.crossOrigin = "Anonymous"; img.src = "assets/500/501.jpeg"; //"https://wow.techbrood.com/uploads/161001/normal2.jpg"; //var gui = new dat.GUI(); //gui.add(settings, 'intensity'); //gui.add(settings, 'radius'); //gui.add(settings, 'ApplyFilter'); function doOilPaintEffect() { oilPaintEffect(canvas, settings.radius, settings.intensity); } function oilPaintEffect(canvas, radius, intensity) { var width = canvas.width, height = canvas.height, imgData = ctx.getImageData(0, 0, width, height), pixData = imgData.data, // change to createElement getting added element just for the demo destCanvas = document.getElementById("dest-canvas"), dCtx = destCanvas.getContext("2d"), pixelIntensityCount = []; destCanvas.width = width; destCanvas.height = height; var destImageData = dCtx.createImageData(width, height), destPixData = destImageData.data, intensityLUT = [], rgbLUT = []; for (var y = 0; y < height; y++) { intensityLUT[y] = []; rgbLUT[y] = []; for (var x = 0; x < width; x++) { var idx = (y * width + x) * 4, r = pixData[idx], g = pixData[idx + 1], b = pixData[idx + 2], avg = (r + g + b) / 3; intensityLUT[y][x] = Math.round((avg * intensity) / 255); rgbLUT[y][x] = { r: r, g: g, b: b }; } } for (y = 0; y < height; y++) { for (x = 0; x < width; x++) { pixelIntensityCount = []; // Find intensities of nearest pixels within radius. for (var yy = -radius; yy <= radius; yy++) { for (var xx = -radius; xx <= radius; xx++) { if (y + yy > 0 && y + yy < height && x + xx > 0 && x + xx < width) { var intensityVal = intensityLUT[y + yy][x + xx]; if (!pixelIntensityCount[intensityVal]) { pixelIntensityCount[intensityVal] = { val: 1, r: rgbLUT[y + yy][x + xx].r, g: rgbLUT[y + yy][x + xx].g, b: rgbLUT[y + yy][x + xx].b } } else { pixelIntensityCount[intensityVal].val++; pixelIntensityCount[intensityVal].r += rgbLUT[y + yy][x + xx].r; pixelIntensityCount[intensityVal].g += rgbLUT[y + yy][x + xx].g; pixelIntensityCount[intensityVal].b += rgbLUT[y + yy][x + xx].b; } } } } pixelIntensityCount.sort(function(a, b) { return b.val - a.val; }); var curMax = pixelIntensityCount[0].val, dIdx = (y * width + x) * 4; destPixData[dIdx] = ~~(pixelIntensityCount[0].r / curMax); destPixData[dIdx + 1] = ~~(pixelIntensityCount[0].g / curMax); destPixData[dIdx + 2] = ~~(pixelIntensityCount[0].b / curMax); destPixData[dIdx + 3] = 255; } } // change this to ctx to instead put the data on the original canvas dCtx.putImageData(destImageData, 0, 0); } window["reddahApi"].loadCompleted()

body { text-align: center; background: #ececec; font-family: Tahoma, Geneva, sans-serif } section { display: inline-block } canvas { border: 1px solid #000 }
submitted 7 years ago ago by 1b54d14be50240948fc53b199a461f52
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picture

Original

仿PS油画滤镜特效


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