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I have captured a burst of 5 dng images from a Nexus6P for scientific imaging. The pixel intensities from the image will be mapped to my measurement value. For further processing the 5 dng images are averaged to reduce the noise and converted to png. I am using the below code to achieve this

convert dng:*.dng -average out.png

I would like to know if any processing is being done on the dng image, changing the pixel intensity values while conversion as it would affect my final calibration.

Version: ImageMagick 7.0.3-4, Windows 10

emcconville
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Ujwal S
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  • Color Quantum + HDRI may influence value rounding (the `Q16[-HDRI]` suffix noted on the download page). Outside of that, I believe there's nothing to worry about. – emcconville Nov 09 '16 at 16:29
  • Thank you for the clarification. One issue I was worried about was whether the colorspace of the output png image is not linear RGB. If it is sRGB the intensities wouldn't be linear with the pixel values. – Ujwal S Nov 10 '16 at 12:28

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