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2014/10/16 ¤W¤È 12:04:02
jquery Programming Glossary: imagedatacanvas.toDataURL() throws security exception, despite image being local http://stackoverflow.com/questions/10187306/canvas-todataurl-throws-security-exception-despite-image-being-local a file that is on your local drive private to you get its imageData and upload that file to a server effectively stealing the image...
Unable to get image data from canvas because the canvas has been tainted by cross-origin data http://stackoverflow.com/questions/14438377/unable-to-get-image-data-from-canvas-because-the-canvas-has-been-tainted-by-cros 2d ctx.drawImage image 0 0 Get the pixel data var imageData ctx.getImageData 0 0 canvas.width canvas.height Loop through.. 0 0 canvas.width canvas.height Loop through imageData.data an array with 4 values per pixel red green blue and alpha.. 4 values per pixel red green blue and alpha for var x 0 x imageData.width x for var y 0 y imageData.height y var index 4 y imageData.width..
Uploading file to wordpress via xml-rpc and javascript http://stackoverflow.com/questions/17688200/uploading-file-to-wordpress-via-xml-rpc-and-javascript First you wanna decode the dataURL you get from Chrome var imageData new Base64 atob dataURL.split ' ' 1 Afterwards the upload.....
JS - get image width and height from the base64 code http://stackoverflow.com/questions/17774928/js-get-image-width-and-height-from-the-base64-code
Ajax HEAD request via Javascript/jQuery http://stackoverflow.com/questions/4715223/ajax-head-request-via-javascript-jquery HEAD requests for Content Length I use this snippet var imageData Array for var i 0 i imageTemp.length i ajaxSizeRequest .ajax.. HEAD async true url imageTemp i success function message imageData.push imageTemp i ajaxSizeRequest.getResponseHeader 'Content.. 'Content Length' However when I dump imageData via console.log I each element which should be an array containing..
how to save specific part of page as image using javascipt http://stackoverflow.com/questions/5336102/how-to-save-specific-part-of-page-as-image-using-javascipt this question You can try to create an image using the imageData API it won't be easy but some people managed to do cool stuff..
canvas.toDataURL() throws security exception, despite image being local http://stackoverflow.com/questions/10187306/canvas-todataurl-throws-security-exception-despite-image-being-local to draw local files to itself then it could potentially draw a file that is on your local drive private to you get its imageData and upload that file to a server effectively stealing the image. We can't have that so the local files break origin clean..
Unable to get image data from canvas because the canvas has been tainted by cross-origin data http://stackoverflow.com/questions/14438377/unable-to-get-image-data-from-canvas-because-the-canvas-has-been-tainted-by-cros image.height Draw the image in canvas var ctx canvas.getContext 2d ctx.drawImage image 0 0 Get the pixel data var imageData ctx.getImageData 0 0 canvas.width canvas.height Loop through imageData.data an array with 4 values per pixel red green blue.. ctx.drawImage image 0 0 Get the pixel data var imageData ctx.getImageData 0 0 canvas.width canvas.height Loop through imageData.data an array with 4 values per pixel red green blue and alpha for var x 0 x imageData.width x for var y 0 y imageData.height.. canvas.height Loop through imageData.data an array with 4 values per pixel red green blue and alpha for var x 0 x imageData.width x for var y 0 y imageData.height y var index 4 y imageData.width x var r imageData.data index var g imageData.data..
Uploading file to wordpress via xml-rpc and javascript http://stackoverflow.com/questions/17688200/uploading-file-to-wordpress-via-xml-rpc-and-javascript with the help of the librabry was no big deal after all. First you wanna decode the dataURL you get from Chrome var imageData new Base64 atob dataURL.split ' ' 1 Afterwards the upload... var imageUpload wp.uploadFile 1 name 'filename.png' type 'image..
JS - get image width and height from the base64 code http://stackoverflow.com/questions/17774928/js-get-image-width-and-height-from-the-base64-code
Ajax HEAD request via Javascript/jQuery http://stackoverflow.com/questions/4715223/ajax-head-request-via-javascript-jquery on a given page. Now trying to grab the size of each image via HEAD requests for Content Length I use this snippet var imageData Array for var i 0 i imageTemp.length i ajaxSizeRequest .ajax type HEAD async true url imageTemp i success function message.. for var i 0 i imageTemp.length i ajaxSizeRequest .ajax type HEAD async true url imageTemp i success function message imageData.push imageTemp i ajaxSizeRequest.getResponseHeader 'Content Length' However when I dump imageData via console.log I each.. function message imageData.push imageTemp i ajaxSizeRequest.getResponseHeader 'Content Length' However when I dump imageData via console.log I each element which should be an array containing the URL and the content length ends up as undefined XXXX..
how to save specific part of page as image using javascipt http://stackoverflow.com/questions/5336102/how-to-save-specific-part-of-page-as-image-using-javascipt
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