Canon G12 pictures got wrong colors

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MagnusBerg
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Canon G12 pictures got wrong colors

Post by MagnusBerg »

Hi!
I got problems then using the latest version of AfterShot Pro 1.0.1.10 for Linux with Canon G12 raw files.
Then I use "white click" to get neutral colors the point i click on became yellow. This behavior is even indicated by the color measurement tool that is located in the bottom toolbar and show pixel colors.
For further info I have the color measurement tool set to sample 5x5 pixel. If I measure a part of the pictures that has, quite close to, the same value for all three RGB colors and then click to activate white click the part that is measured turn yellow and the color measure tool show that B is 10 to 15 units lower than R and B.
An example from real life: Before I click the sample pixels gives this values R 145 G 146 B 140. After white click the values is R 145 G 146 B 132. Not good at all. This is a grave functionally fault.
And the Kelvin values doesn't get right either. Then I chose 'sunlight' is not somethere over 5000 K, as it should be, insted it's around 3500 K.

One more thing: I have also recognize that moving the sliders 'temp' and 'tint' a little on AS P 1.0.1.10 make the color change the colors a big step. That make the sliders unusable.

The first version of AS P doesn't have whose fault. They did not apeare with Nikon D80 raw files.

I have informed Corels support about this but they wasn't interested or helpful at all. :-( After using open source application for a decade I'm very spoilt by fast, interested and helpful support from the developers.

Can, PLEASE, sombody confirm if this is a bug och somthing else?
SteveCase
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Re: Canon G12 pictures got wrong colors

Post by SteveCase »

Have a sample RAW we can look at?
Steve in Seattle,WA
simico
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Re: Canon G12 pictures got wrong colors

Post by simico »

Sounds like it's the white balance handling bug affecting several cameras.
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