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When I resize a CMYK TIFF, and output to TIFF the output file is RGB not CMYK.
Do I need to configure the output somehow to enable CMYK output?
Here is the code I am using:
``` javascript
var out…
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Slices like`Slice!(2, RGB8*)` are good but they are not always optimal for image processing and computer vision algorithms because
- they does not allow vectorization for algorithms, which work with c…
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### Problem
With Varicams and GH5s beeing all over the place, making the V-Log curve available as colourspace inside of Natron would make quite a lot of sense.
I have found no way to add V-Log to …
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There are plenty of colourspaces with a various number of channels. **[Obtaining desired information with `.raw()`](https://github.com/lovell/sharp/issues/934) is sometimes quite troublesome**, espec…
ghost updated
6 years ago
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References
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- http://www.ingentaconnect.com/content/ist/cic/2010/00002010/00000001/art00057?crawler=true
- https://www.youtube.com/watch?v=fjt7VHarVu4
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It would be great to have control over some parameters when plotting RGB samples on a CIE1931 diagram:
style (x, +, or circle)
fill color (black, white, rgb source color)
size (relative or width in…
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The delta_e_cie2000 function is giving me the wrong calculation of numbers. I was just checking with a [calculator](http://colormine.org/delta-e-calculator/cie2000) online to verify reproducibility. I…
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## References
- http://onlinelibrary.wiley.com/doi/10.1002/col.20227/abstract
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As of _Colour 0.3.8_ and the various changes in the RGB colourspaces implementation, a defect was introduced:
_sRGB_ colourspace is using _IEC 61966-2-1:1999_ normalised primary matrix definition:
`…
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The results for carrying out the same operation on an image (strip metadata and quality 80 jpeg) are significantly different.
Command Line = `vips copy voonik.jpg voonik-sharp.jpg[Q=80,strip]`
Sha…