bcin> -save as proggressive jpg bcin> -disable colour sampling bcin> -keep original exif data bcin> -keep original iptc data bcin> -keep original jpg comment
I use this: IrfanView jpg quality of 75% (remember, quality 100% is least compression and best quality, 25% is much more compression and quite ugly quality). disable colour subsampling is CHECKED. This gives slightly larger files but much better colour gradations with some photographs (otherwise, jpeg would "subsample" the colours into larger blocks, which do look ugly sometime). All the other checkboxes are clear, unless I want to save it as grayscale, for B&W photographs, which produces better files (smaller and without colour, of course). Also, you should use Lanczos resampling for reducing the resolution to 640 pixels (it's the best algorithm) and most files _do_ need sharpening after resampling to smaller size. You can usually just use the sharpen filter in Irfan, although that might sometimes be too strong. Hope this helps, Frantisek
