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Tag: png

PNGj: Row writing order

The purpose is to draw a small image inside another image at some specified area. Is there any possibility to change only specified rows and avoid rewriting of entire lines of the origin image? I …

How to create 8-bit PNG from BufferedImage?

I have a Java program that creates composite png images that contain only black pixels and 100% transparent pixels. I am trying to reduce the size of these composites as much as possible and I notice that ImageIO.write always outputs 32 bit PNG’s. I would like to instead save them as 8-bit considering that the images will only have two