"Enhance colors" somewhat broken since 1.8.1 onwards

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ChuckleTed
Posts: 4
Joined: Thu Jul 30, 2026 3:17 pm

"Enhance colors" somewhat broken since 1.8.1 onwards

Post by ChuckleTed »

XnView: MP 1.8.1 and newer - 64 bit
OS: Windows 64bit

The "Enhance colors" dialog (opened using Shift-E by default) has drastically changed/broke the way it works between versions 1.8.0 and 1.8.1

Effect: Adjusting Brightness and Contrast has little to no effect until the slider reaches around +50.

To reproduce:
1. Open any image using XnViewMP 1.8.0
2. Open the 'Enhance colors' dialog and play with the Brightness/Contrast sliders.
3. Note (or screenshot) how they affect the image at different settings.
1. Open any image using XnViewMP 1.8.1 or newer.
2. Open the 'Enhance colors' dialog and play with the Brightness/Contrast sliders.
3. Note (or screenshot) how they affect the image at different settings.

Actual behaviour (bug): The sliders barely affect the image until about halfway through (+50) :bug:

Expected behaviour: There is a noticeable effect on the image at every step in the adjustment.

See attached screenshots:
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user0
XnThusiast
Posts: 3055
Joined: Sat May 09, 2015 9:37 am

Re: "Enhance colors" somewhat broken since 1.8.1 onwards

Post by user0 »

ChuckleTed
Posts: 4
Joined: Thu Jul 30, 2026 3:17 pm

Re: "Enhance colors" somewhat broken since 1.8.1 onwards

Post by ChuckleTed »

Got it, thank you; I'll go back to using 1.8.0 and disable updates in this case.
Thank you for keeping an archive of older versions available for download, @XnView :)