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bartonlew
Legend
November 28, 2018
Answered

alternatives to ACR adjustment brush in Adjustment Layers

  • November 28, 2018
  • 4 replies
  • 2587 views

I'm getting the message "the image size exceeds 65000 pixels on the long side" and so can't use ACR.  However, when I choose File>Image (2nd screen shot), my image is approx. 30000 x 27000 pixels.  So why am I getting that message?

To the extent I can't use ACR, I need a workaround for selectively applying exposure changes to parts of the image.  I created a Brightness/Contrast Adjustment Layer.  I clicked on the mask, and hit "b" to select the brush, then started painting in the area in the image on the right that is underexposed.  The painted area became darker, but I needed it darker still.  If I click on the Brightness/Contrast icon and bring up the panel, and move the Brightness slider, it affects the rest of my image, not where I want to paint.  How do I effect the painted area only?  Thanks.

This topic has been closed for replies.
Correct answer Bojan Živković11378569

Here is what you need to do documented with screenshots:

Paint with black on layer mask where you want to hide adjustment.

If you have painted with black where you want to apply adjustment then select mask and press Ctrl/Cmd + I to invert colors on the mask.

Do you understand this concept? Adjustment will be visible only where you have white color on your mask (or shades of grey).

Create adjustment layer and move slider then paint on the layer mask. At any time you can double click on sun icon (in this case) in the Layers panel to bring properties for Brightness/Contrast adjustment (in this case) or any other applied adjustment. To refine/change mask and what is affected just select mask in the Layers panel and Brush tool from the Toolbox then paint with either black or white color.

After creating adjustment you will (probably) see white layer mask next to adjustment icon. Click on layer mask thumbnail then press Ctrl/Cmd + I to invert the mask. Select Brush tool then paint with white on layer mask where you want the adjustment to be visible.

4 replies

occulus.nigra
Inspiring
November 30, 2018

You can also have several Adjustment Layers (with or without masks), each targeting a different amount / kind / area of adjustment.

bartonlew
bartonlewAuthor
Legend
December 1, 2018

But you can only have one Adjustment Layer  of its kind per image, is that correct?

Bojan Živković11378569
Community Expert
Community Expert
December 1, 2018

You can have as many adjustment layers of its kind as you want per file. There isn't any limitation as far as I know.

Bob_Hallam
Legend
November 30, 2018

You can easily darken an area in your image using the History brush in multiply mode.  Just set the brush density to 10% or so and you will be able to darken based on the current history state. 

ICC programmer and developer, Photographer, artist and color management expert, Print standards and process expert.
bartonlew
bartonlewAuthor
Legend
December 1, 2018

I'm not familiar with the History brush or multiply mode, I will try and find some youtube videos. Thanks!

Chuck Uebele
Community Expert
Community Expert
November 29, 2018

It would be helpful to see a screen shot of what you're doing, but Bojan illustrated the concept nicely.

Chuck Uebele
Community Expert
Community Expert
November 28, 2018

I'm assuming you're trying to use the Camera Raw filter through PS? Since it is a smart object, does that layer have content outside of the canvas?

The brightness adjustment layer will show its correction in any area on the mask that is white or a shade of gray. So if you want to change just where you're painting, you should start with a black mask and paint in the areas you want darker. Once you paint, you can adjust the adjustment layer to be either darker or lighter to match what you have in mind.

Bojan Živković11378569
Community Expert
Community Expert
November 28, 2018

Just to add: If you have extra pixels outside of canvas then you must edit Smart Object content to delete extra pixels because you can not delete pixels on Smart Object layer.

From the scenario described above you probably need to select mask then to press Ctrl/Cmd + I to invert mask. I believe you are painting with black color on white mask where you want to apply adjustment. In that case just invert mask then bring up dialog to adjust settings.