Adjust Brightness/Contrast/Gamma/Balance for SELECTION ONLY

[btakacs]

Is there a way to adjust Brightness/Contrast/Gamma/Balance for SELECTION ONLY?

Image > Adjust > Brightness/Contrast/Gamma/Balance does that for the whole image.
Filters work for selection but I haven't found any suitable Filter.

Regards
Bence

[cday]

It works for me...

You need to check 'Apply to image' in the Image > Adjust window to preview the effect.

Edit:

When a selection has been made, the Before and After displays in the Image > Adjust window do misleadingly show the change as being applied to the whole image, but the operation is only in fact applied to the selection when OK is clicked.

[btakacs]

For me it's not: it applies the changes to the whole image, not the selection only.

Additionally if I adjust Hue/Lightness/Saturation, then it additionally TURNS OFF the transparency of the PNG.

I use XnView 2.0.4 on Windows 7.

[cday]

I'm using XnView 2.04 on Windows 7 too and this is what I see:

Selection with the following settings:

Image_1.png (23.66 KiB) Viewed 2635 times

Image_2.png (15.69 KiB) Viewed 2635 times

And the result:

Image_4.png (52.1 KiB) Viewed 2635 times

Edit:

You are making the selection before clicking on Image > Adjust > Brightness... ?

[btakacs]

Ok, here is the result of my investigations:

This function works fine until I make the image paletted (Image > Convert to colours).
On paletted images that happens:

change_selection_on_paletted_image.jpg (41.3 KiB) Viewed 2614 times

...and yes: I first made the selection and then did the adjustments.

[btakacs]

So it is working this way:
- Converting the image to 32 bits (Image > 32 Bits)
- Adjust the selection
- Converting back to Palette (Image > Convert to Colours)
- Setting the transparent colour again (Image > Edit Palette > (Select colour)+ (Enable transparency) then (OK) )

Actually it was my fault: this is the issue of not knowing the underlying basic concepts.
Thanks to Batti for the Help