JPEG Newbie Question
The export has 4 types of JPEGs. What is the differentiation? Thanks.
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Ok. if in short
JPEG is short for Joint Photographic Experts Group. It is a compressed format that in definition is a lossy-format, which means you lose some of the original information in the image file but benefit by having a much smaller file than TIFF or RAW.
The JPEG QuickProofâ„¢ format option creates images for evaluation purposes. Capture One creates the image file from the proxy file and the settings file without additional calculations or filters. JPEG QuickProof should not be considered as a completed file; it is ideal for ultra quick evaluation purposes only.
JPEG XR (eXtended Range) delivers high-resolution files. It is a larger file size than a standard JPEG and supports lossless and lossy compression. It supports improved color accuracy with 16 bits per channel for a 48 bit image.
JPEG 2000 is, in essence, an improved file format standard that was developed with the aim to superseding the original JPEG in the year 2000. It delivers better compression of images by up to 20% according to the Joint Photographic Experts Group. (Source: www.jpeg.org)
If in long read more info from here:
http://help.phaseone.com/en/CO7/Output/ ... d-RAW.aspx0 -
Thanks. For some reason, file formats are not in the version 9 online user guide. 0 -
[quote="NN635845747595482374UL" wrote:
Thanks. For some reason, file formats are not in the version 9 online user guide.
For what it is worth these four non-standard jpg configurations (2000 8 bit, 2000 16 bit, XR and QP) are not new to CO-9 as they were also available for export in CO-8.
The size differences between the formats are interesting. A standard raw output from my Canon raw files, in jpg format, is about 5 MB. The Jpg2000 16 bit format larger than 26 MB and the XR format is 37 MB. The QuickProof is about 2 MB.0
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