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T O P I C R E V I E W
giancarlo	Posted - May 14 2013 : 02:57:35 I scan an image with imageenview and save it to a jpg file with 90 quality... i get about 1200kb I scan the SAME image with other programs (faststone,irfanview,photoshop cs5) and saved with 90 jpg quality and i get from 300kb to 400kb i all saved in 24bit depth and with the same resolution and dpi. why so much file size difference? also tried with/without "progressive" but the file size change few kb. thank you
4 L A T E S T R E P L I E S (Newest First)
giancarlo	Posted - May 14 2013 : 09:51:54 yes, now the files are smaller. thank you so much :)
fab	Posted - May 14 2013 : 09:22:51 You encoded ImageEn jpegs as RGB, while they should be YCbCr (as other programs do). Try this: ImageEnView1.IO.Params.JPEG_ColorSpace := ioJPEG_YCbCr; ImageEnView1.IO.Params.JPEG_Quality := 90; ImageEnView1.IO.SaveToFile('out.jpg');
giancarlo	Posted - May 14 2013 : 08:35:22 sure. here the first pack of scans: ./attach/giancarlo/201351482857_scan_size_test_a.zip the second pack ./attach/giancarlo/201351483133_scan_size_test_b.zip i just notice that some program apply an automatic soft correction (contrast or brightness) before saving. to avoid resize or resample differences, i've scanned the whole bed scanner space thank you
fab	Posted - May 14 2013 : 06:59:42 Please could you post both (ImageEn and other program) resulting jpegs?