问题描述
大家好，
我目前正在处理非常大的位图(32位，> 1GB)，接近位图大小限制(〜32 kpx平方).出于文件存储的原因，我想将这些位图转换为更合适的格式，例如jpg或png.但是我必须转换它们而不必立即将整个位图加载到内存中，因为这样会遇到内存不足的错误.
有什么办法可以部分转换位图，例如按行，按块或按带?目前，我正在使用Photoshop进行保存，但是在项目的后期阶段这不再是一种选择.
感谢您的帮助，
Max
Hello everybody,
I am currently dealing with very large bitmaps (32bit, > 1GB) close to the bitmap size limit (~ 32 kpx squared). For file storage reasons, I would like to convert these bitmaps into more suitable formats, e.g. jpg or png. But I have to convert them without loading the whole bitmap into memory at once, since I will get a out-of-memory error.
Is there any way how to convert the bitmap in parts, e.g. linewise, blockwise or bandwise? At the moment, I am using Photoshop for saving, but this is not an option at a later stage of the project anymore.
Thanks for the help,
Max
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