CR2 RAW file conversion

[jose.sanpedro]

comparing the original (foto.cr2) with the new one (foto3.jpg). im using my own pictures...not the same files posted above.

[snibgo]

But what software are you viewing foto.cr2 with? It doesn't contain RGB pixels, so some software is converting it.

[jose.sanpedro]

i'm using photoshop.

[snibgo]

What adjustments are needed to make the PS and IM results match? Were the camera settings at neutral? (PS will probably use them. IM won't.)

[jose.sanpedro]

i cant tell about camera settings, because i did not took the picture.

[snibgo]

Exiftool can tell you.

[jose.sanpedro]

File name : foto.cr2
File size : 24462447 Bytes
MIME type : image/x-canon-cr2
Image size : 5472 x 3648
Camera make : Canon
Camera model : Canon EOS 70D
Image timestamp : 2016:02:21 12:32:18
Image number :
Exposure time : 1/100 s
Aperture : F2
Exposure bias : 0 EV
Flash : No, compulsory
Flash bias : 0 EV
Focal length : 50.0 mm
Subject distance: 01.99 m3.50 m
ISO speed : 100
Exposure mode : Manual
Metering mode : Multi-segment
Macro mode : Off
Image quality : RAW
Exif Resolution : 5472 x 3648
White balance : Manual Temperature (Kelvin)
Thumbnail : image/jpeg, 17031 Bytes
Copyright :
Exif comment :

[fmw42]

convert E1DXINBI003200.CR2 -set colorspace RGB -resize 800x600 -colorspace sRGB out.png

Depending upon your IM version, you may need to use -set colorspace sRGB or -set colorspace RGB and vice-versa for -colorspace.

What is your IM version and platform?

i tried, but the result is not good. image is dark and colors do not match with the original image.

Describe how the colors are different?

[fmw42]

i'm using photoshop.

Photoshop could be assigning a different (Adobe) profile than sRGB when the file is opened. That might change the colors slightly.

[jose.sanpedro]

im using ImageMagick-6.9.3-Q16 on windows 64 bits

with

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convert E1DXINBI003200.CR2 -set colorspace RGB -resize 800x600 -colorspace sRGB out.png

seems like the picture is behind a light green glass.

[fmw42]

Can you post your raw .CR2 file to some free hosting service such as dropbox.com and put the URL here so that the experts on raw formats can check and test with your image file?

[fmw42]

I am no expert at raw images. But have you tried:

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convert E1DXINBI003200.CR2 -set colorspace sRGB -resize 800x600 out.png

[jose.sanpedro]

https://drive.google.com/file/d/0B2LffC ... sp=sharing

[snibgo]

dcraw -v -6 -A 2000 2000 1000 1000 -T -O foto3.jpg foto.cr2

What made you choose that area to make average gray? A different result comes from using the white balance that was recorded by the camera:

dcraw -v -6 -w -T -O foto3.jpg foto.cr2

[jose.sanpedro]

i found that code here https://www.imagemagick.org/discourse-s ... hp?t=25424

i tried

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dcraw -v -6 -w -T -O foto3.jpg foto.cr2

but did not see any difference

looks the same using

Code: Select all

dcraw -v -6 -A 2000 2000 1000 1000 -T -O foto3.jpg foto.cr2