I need to to turn the actual values of the pixels of a Bitmap into greyscale. I've found solutions where it adds a filter like here The problem is: it just changes it on the screen for viewing while keeping it as is. I need to change the actual bitmap to work on the pixels later and saving. I tried to read about the color theory but got lost more
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It's actually creating a new bitmap with grayscale, you have to save that in a new file to get an actual image file. – Praveen Jun 17 '21 at 14:10
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Pretty similar here: https://stackoverflow.com/a/67656634/10534012 – Darkman Jun 17 '21 at 18:47