pixel-manipulation

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HTML5 canvas putImageData seems to mess with pixels not getting expected results

I am trying to draw an isometric square with some custom code to build the pixel data up and then put it on a canvas with putImageData.[详细]

2023-03-27 12:46 分类：问答
Android image sharpening, saturation, hue, brightness, and contrast

I\'m trying to create an app that will allow me to adjust the hue, saturation, brightness, contrast, and sharpness of an image by adjusting the seekbars for each of the above fields.[详细]

2023-03-15 06:15 分类：问答
dimming the alpha value of a pixel android

i\'m trying to dim the alpha channel of individual pixels in a bitmap. i\'d like to keep the pixels color rgb but just make the pixel semi transparent. i\'ve looked at the Color class and tried the Co[详细]

2023-03-04 07:34 分类：问答
how to find xy coordinate of pixel in pixel array from android bitmap

i have an int array derived from a bitmap using the Bitmap.getPixels() method. This method populates the array with the pixels from the Bitmap. How can i get the xy coordinate of each pixel when i loo[详细]

2023-03-03 09:23 分类：问答
Why is setting HTML5's CanvasPixelArray values ridiculously slow and how can I do it faster?

I am trying to do some dynamic visual effects using the HTML 5 canvas\' pixel manipulation, but I am running into a problem where setting pixels in the CanvasPixelArray is ridiculously slow.[详细]

2022-12-25 19:47 分类：问答
THE9成团首场演唱会来袭？

3月9日报道随着《青春有你2》等综艺节目火爆出圈，各大女团凭借独特的“她力量”圈粉无数，不同类型的女团演唱会也深受大众追捧。今日，THE9“虚实之城”沉浸式虚拟演唱会概念宣传片发布，区别于过往演唱会形式，此[详细]

2022-12-16 19:48 分类：问答