Date: Wed, 15 Jul 1998 21:37:53 +0200 From: Salvatore Cagliari Organization: CKS Imagination Subject: [IML] QUEST: JPEG Formats Hi Reply because at 15-Jul-98 Stephane Van Israel (at sky69975@SKYNET.BE) has cryed out to the world about Re: [IML] QUEST: 3rd time..(somme comments) > At 22:40 13/07/98 +0200, you wrote: >> Hi >> Sorry if anyone gets this message for third time - but I didn't get any >> 3. Funny thing happens when I save my quickrenders in any of the Imagines >> JPG formats - most of my browsers don't recognize the format, and when I >> load the picture into PhotoPaint, it looks OK, but it's...flipped verticaly. >> Why is that, and what can I do about it? > There was an explanation of "WHY ?", about one year ago (it has something > to do with different kind of colour compression) on the IML, I can't find > it anymore but here are the JPG formats that work with every paint package > (that support JPG, of course) : > JFIF (4:4:4), JFIF (4:2:2), JFIF (4:1:1). I hope it helps you. There was the same question a few months ago, and now here it's again: What are meaning this code's 4:4:4 or 4:2:2 with JFIF/JPEG. Thank you ---------------------------------- From: paulw@iglou.com Date: Wed, 15 Jul 1998 23:31:27 GMT This is color space, DV video is 4:1:1 motion jpeg analog video is 4:2:2 meaning=3Dcolor bits are sampled once for DV and twice for analaog. Shorthand=3DMJpeg analog has truer color fidelity because it has a mathmatically richer pallete to sample from. I assume the concept is similiar for jpeg stills