Wanted to without changing the picture DPI, want to change the size of the picture, with the cximage set definition can modify the picture size, but the next time you read is discovered by the modified pictures [GetJpegQuality] definition is always the default is 90, not the last time through setting the new value, after SetJpegQuality, have some other good ways

CodePudding user response:

Should be able to save the time of setting the dpi

CodePudding user response:

I use gdi + GetThumbnailImage what of, you can set a scale of 0-100 to image quality absolutely, there are not effective, I really didn't verified,
Generally transcoding BMP 2 JPG with it

CodePudding user response:

Clarity is not the attribute of image, it should be acceptable compression loss in storage parameters of

CodePudding user response:

Also can adjust image digits, 32-bit 24 16 eight,

CodePudding user response:

This don't call volume, this is the compression quality, directly change attributes is useless, is only effective in the preservation set when the compression quality