C1 Express Colors rendered differently?
Hi,
first i observed, that the colors of my images look different in C1 than in my image processing software.
No wonder, no worry, brand new installation, new tools, no adjustments made etc..., all out of the box.
But the strange thing is: when i load the same image (a MacBeth ColorChecker JPG provided by Fuji) in C1 and then in other applications (Preview, Photoline, Firefox a.s.o) and compare the RGB values using the DigitalColor Meter utility coming with OS X with the widest aperture settings), the differences are really significant.
For example, in C1 the difference compared to other software is about 30 steps in the blue part of one color.
The differences between other applications are minor, about 1-2 steps max. and often none, pretty good for the beginning.
For the moment i have no idea to get around this issue.
Best regards,
Peter
first i observed, that the colors of my images look different in C1 than in my image processing software.
No wonder, no worry, brand new installation, new tools, no adjustments made etc..., all out of the box.
But the strange thing is: when i load the same image (a MacBeth ColorChecker JPG provided by Fuji) in C1 and then in other applications (Preview, Photoline, Firefox a.s.o) and compare the RGB values using the DigitalColor Meter utility coming with OS X with the widest aperture settings), the differences are really significant.
For example, in C1 the difference compared to other software is about 30 steps in the blue part of one color.
The differences between other applications are minor, about 1-2 steps max. and often none, pretty good for the beginning.
For the moment i have no idea to get around this issue.
Best regards,
Peter
0
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Hi Peter,
From what camera are your files from? Just for clarity's sake.
CaptureOne has a response curve (under the Exposure Evaluation tab). Have you set that to flat? It's basically CaptureOne's basest level of bias when it comes to rendering previews of RAW files of any sort. The other applications your comparing the previews to will probably have a bias as well.0 -
Hi,
it is a Canon 1000d (i'm an amateur).
The test image is a JPG (not taken with my cam).
Didn't change any settings in this test case.
Regards,
Peter0 -
Hey,
Had a few thoughts...
Is View>Proof Profile set to "no profile"? If not you may be previewing the file in a different colourspace (e.g. if you are using "selected recipie".
Is the image you are viewing tagged with a LAB colourspace? I'm not sure C1 supports that.
In the "Base Characteristics" tool it should read "Jpeg file- neutral" and "linear response"?
If its not these I would guess it might be to do with C1 using a different color engine but that doesn't seem right?? AFAIK C1 uses the apple CMM so there can be differences when when viewing in Photoshop (using adobe color engine). But I thought preview would have used Apples Cmm. Could be the programs are using different Black point compensation, but I'm know color expert so maybe another user can help if its none of the above...0 -
Hi,
I'm using the Express version which doesn't have the Proof Profile dialog.
The image comes with no profile.
Base Characteristics are set to Jpeg file- neutral and linear response.
Regards,
Peter0 -
BTW: some information about the used image. identify -verbose macbeth.jpg
Image: macbeth.jpg
Format: JPEG (Joint Photographic Experts Group JFIF format)
Class: DirectClass
Geometry: 640x458+0+0
Resolution: 300x300
Print size: 2.13333x1.52667
Units: PixelsPerInch
Type: TrueColor
Endianess: Undefined
Colorspace: sRGB
Depth: 8-bit
Channel depth:
red: 8-bit
green: 8-bit
blue: 8-bit
Channel statistics:
Red:
min: 0 (0)
max: 255 (1)
mean: 118.091 (0.463103)
standard deviation: 97.9057 (0.383944)
kurtosis: -1.53644
skewness: 0.111117
Green:
min: 0 (0)
max: 255 (1)
mean: 94.8224 (0.371853)
standard deviation: 89.7012 (0.35177)
kurtosis: -1.22123
skewness: 0.41175
Blue:
min: 0 (0)
max: 255 (1)
mean: 79.6087 (0.312191)
standard deviation: 80.4274 (0.315402)
kurtosis: -0.882186
skewness: 0.658171
Image statistics:
Overall:
min: 0 (0)
max: 255 (1)
mean: 97.5074 (0.382382)
standard deviation: 89.6296 (0.351489)
kurtosis: -1.15834
skewness: 0.428967
Rendering intent: Perceptual
Gamma: 0.454545
Chromaticity:
red primary: (0.64,0.33)
green primary: (0.3,0.6)
blue primary: (0.15,0.06)
white point: (0.3127,0.329)
Interlace: None
Background color: white
Border color: srgb(223,223,223)
Matte color: grey74
Transparent color: black
Compose: Over
Page geometry: 640x458+0+0
Dispose: Undefined
Iterations: 0
Compression: JPEG
Quality: 85
Orientation: Undefined
Properties:
date:create: 2012-05-09T11:23:01+02:00
date:modify: 2012-05-09T11:23:01+02:00
jpeg:colorspace: 2
jpeg:sampling-factor: 2x2,1x1,1x1
signature: 8bdf4c6458cddca7f49fe5046cca148c95c62ed95c356b74665e4a463452d65c
Artifacts:
filename: macbeth.jpg
verbose: true
Tainted: False
Filesize: 31.2KB
Number pixels: 293K
Pixels per second: 9.455MB
User time: 0.000u
Elapsed time: 0:01.031
Version: ImageMagick 6.7.6-9 2012-05-06 Q16 http://www.imagemagick.org
.0 -
Hi beyond what I suggested I can't help you further, I have no experience with express. It may be worth contacting phase one support. 0
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