For Rawtherapee 5.4 on Windows 7, on the page https://rawpedia.rawtherapee.com/Resize it says
“Lanczos is the default method… Use it to resize by any amount.” This appears to be wrong since when I try to resize, whether by specifying scale, width, or height, I can go no larger than 4x the image. In this case the source image is a 1080 x 720 pixels tiff file.
The scale slider tops out at 4.0 and if I specify a pixel width larger than 4320(1080*4), when I tab out of the width field, no matter what value larger than 4320 I put in it reverts down to 4320. Also with a value of 4320, the plus button becomes disabled. Is this really the way Rawtherapee’s resize function is supposed to work?
Resize options used are
Applies to: Full Image
Also, resize was applied as the only action to be taken.