X4: brighten along a gradient?
Moderator: Kathy_9
-
gning
- Posts: 21
- Joined: Fri Jun 10, 2011 6:04 am
- System_Drive: C
- 32bit or 64bit: 64 Bit
- motherboard: AMD 785G chipset
- processor: AMD Phenom II X4 [B95] 3.0 GHz
- ram: 4 gb
- Video Card: on-motherboard Radeon HD 4200
- sound_card: on-motherboard Realtek
- Hard_Drive_Capacity: 384 gb
- Monitor/Display Make & Model: LG Flatron L246WP (24" S-PVA)
X4: brighten along a gradient?
Is there any way to apply brightening along a gradient? Like to compensate for lighting that comes onto a surface from one side, in order to make the surface look more uniformly lit?
-
LeviFiction
- Advisor
- Posts: 6831
- Joined: Thu Oct 02, 2008 1:07 pm
- System_Drive: C
- 32bit or 64bit: 64 Bit
- motherboard: Alienware M17xR4
- processor: Intel Core i7-3630QM CPU - 2_40GH
- ram: 6 GB
- Video Card: NVIDIA GeForce GTX 660M
- sound_card: Sound Blaster Recon3Di
- Hard_Drive_Capacity: 500GB
- Corel programs: PSP: 8-2023
- Location: USA
Re: X4: brighten along a gradient?
Yes.
Any number of ways. My favorite is to use one of the adjustment layers (not brightness & contrast if I can avoid it) and then simply apply a black and white gradient using the Fill tool.
Another way would be to create a light-mask. You create a mask from from the image using the image's "luminance" or brightness values. This will select all of the brightest areas of the image. Then you can invert the mask to select all of the darkest areas and apply the adjustments to a copy of the image. Or create a selection from the mask and create an adjustment layer which will then automatically add the selection to its own mask.
So lots of fun options.
Small video showing these methods in action:
Any number of ways. My favorite is to use one of the adjustment layers (not brightness & contrast if I can avoid it) and then simply apply a black and white gradient using the Fill tool.
Another way would be to create a light-mask. You create a mask from from the image using the image's "luminance" or brightness values. This will select all of the brightest areas of the image. Then you can invert the mask to select all of the darkest areas and apply the adjustments to a copy of the image. Or create a selection from the mask and create an adjustment layer which will then automatically add the selection to its own mask.
So lots of fun options.
Small video showing these methods in action:
https://levifiction.wordpress.com/