Is it possible to store a BufferedImage with transparency in the BMP image format? With 32 bits per pixel this information should be storable. I also don't need a fine gradation of transparency but only is transparent or not. I want to save the image using Java and ImageIO. For this I also use the extensions of TwelveMonkeys.
I need to save it in a directly modifiable format because the image is too large for the memory of the creating program and the program assembles the image piece by piece.