I'm not sure if this is related to a problem I have just discovered with TIF files. 27077), downloaded in the last day or two. TIFF 16-bit for c in RLE None LZW Zip do time convert foo.tif -monitor -depth 16 -compress "$c" "$5_8.I am running v3.5.3 (Final Release build. To convert the formats I used ImageMagick-6.8.8.10 on an x86_64 Intel(R) Core(TM) i7 CPU Q 820 1.73GHz, and I scripted the steps in Bash. The input file is a 16-bit 10000x5000 pixel real-world panorama. The images can be converted externally to other more efficient formats, such as 16-bit JPEG-2000 or OpenEXR.Zip is the most efficient compression method for real-world photos supported by TIFF. TIFF can use various compression methods (including the one PNG uses: DEFLATE, also known as Zip).TIFF and JPEG support metadata, PNG generally does not.JPEG is the most widely supported but is lossy and in most implementations limited to 8 bits per channel, 24 bits per pixel.final processed images, scanned film, high dynamic range images, and so forth: Some things to consider when deciding which format to use for storing non-intermediate files, e.g. This pretty much means you should always use uncompressed 16-bit TIFF as your intermediate format. The ideal intermediate format is one which loses no image data or metadata and is quick to read and write. RawTherapee 5.4 uses an efficient and fast compression strategy for both TIFF and PNG, and both formats support metadata.Īn intermediate file is one you use just to pass the image data around between programs while working on it, e.g. While the information contained here may have some value, note that it is obsolete.
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