Answer by user3325025 for HTML5 Canvas Make Black Transparent
Felipe's answer addressed my issue. Alpha pixel manipulation does not work(eg, setting every 4th pixel to 0) for preserving alphatransparency with multiple images added into the same context at the...
View ArticleAnswer by DaudiHell for HTML5 Canvas Make Black Transparent
How about saving the picture as an .svg file...from there you can change all colors and other settings
View ArticleAnswer by ericjbasti for HTML5 Canvas Make Black Transparent
So you'll need to run through all the pixels and change the alpha value of all the black pixels.https://jsfiddle.net/0kuph15a/2/This code creates a buffer (empty canvas) to draw the original image to....
View ArticleAnswer by Filipe for HTML5 Canvas Make Black Transparent
You can accomplish that using blend modes.Change the context globalCompositeOperation to screen, and you can get that result. Here's an example:var canvas = document.getElementById("canvas");var...
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HTML5 Canvas Make Black Transparent
I have a large amount of images with a black background, here is one for example:Is it possible through Javascript to have to ignore the black (#000000) and have it draw on canvas? to appear like...
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