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Change file size of image gimp bytes2/2/2023 pbm (which in theory only has 1 bit per pixel, and 2 header bytes) and the file did in fact shrink, but to 29 bytes. bmp you created.ġ) Thank you very much for helping me! =DĢ) How can I make a 13 byte binary file? And how can I read it as an image later?ģ) So I found out I was able to change the format to. The second way of putting it is actually a different question, and it looks to me like you have a 1 bit per pixel image file with the. A bitmap on its own is simply a matrix of values that could be interpreted in many different ways. An image format incorporates data to define how the bitmap must be rasterized to produce an image. Or, straightforwardly: What image format\configuration can I use to have a 1 bit per pixel image?Ī 100-bit sized file will simply be a 13 byte binary file containing a bitmap and four padding bits, it will not be of any image format. How can I have a 100-bit sized image file? There are two mandatory headers, a Color Table when Bits per Pixel is 8 or less (as it is here) and row sizes are padded to multiples of 4, so your rows of 10 will occupy 12 bits each and total 15 bytes in the pixel array. So it seems like its using 8 bits (1byte) per pixel some addressing (?). The thing is, now the file has 102 bytes.
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