I understand. Maybe it’s because I didn’t explain it clearly. Maybe it’s because my English is not that good! My project is a software material "file" (such as xxx.bin). It is not an image file (such as bmp png...etc.) but a processed file (such as 0x4000~0x5000 blocks to store each pixel) Corresponding position, 0x7000~0x8000 block stores the pixel values ​​used, sorted and stored) After the software reads the file and then performs the internal calculation of the calculation software, the result will be displayed on the software as a material graphic. The other parts have been parsed, and the "arrangement order" of the remaining pixel value data cannot be solved, so I don't care about the corresponding position of its pixel (the corresponding position has been parsed in the block where it is stored). So my need is the pixel The arrangement has nothing to do with the structure of the graph. I have a rough understanding of the image format you mentioned. So I'm just talking about the arrangement of pixels. It may be that my English is not good. Some of the translations used caused trouble in asking questions. I’m sorry! The illustration is for viewing and understanding. It is drawn using VS according to its stored block pixel data. Otherwise it is just a group of arranged pixel values.