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ShynnSup
ShynnSup
Inspiring
January 20, 2021
Question

Object Selection Tool in Mask does not Add pixels back

  • January 20, 2021
  • 4 replies
  • 707 views

Hi all,

 

I have two problems with the masking tool right now:

 

1. When I substract pixels and use the object selection tool (rectangle) I can make super precise selections and all pixels selected will be erased, that's excelent. The problem comes when I want to add some pixels back, so I use the same tool but with + mode and it just does not add pixels back in the same precise way, in fact, if the selection is too small, it doesn't do anything. While substracting I can be precise up to 1 single pixel. To add pixels back I need to make much bigger selections. What is the deal with this?

 

2. How can I disable anti alising while using the brush tool? I really don't want any kind of grays in my mask, just plain white and black...

 

Thanks in advance.

 

 

This topic has been closed for replies.

4 replies

ShynnSup
ShynnSupAuthor
Inspiring
January 22, 2021

Any ideas?

ShynnSup
ShynnSupAuthor
Inspiring
January 21, 2021

Okay, here is the video:

 

Notice how I use the + or - mode to add or substract from my mask. While in - mode I can substract pricesely with not anti alising. When I switch over to + mode, the rectangular selection is not respected, the portions of the image that come back are not rectangular shape, they seem random and have anti alising applied.

 

Then I tried doing it over 1px. Substraction mode works fine, when I try to add back with + mode it does not unhide my pixels.

 

 

Bojan Živković11378569
Bojan Živković11378569
Community Expert
January 20, 2021

"How can I disable anti alising while using the brush tool? I really don't want any kind of grays in my mask, just plain white and black..."

In Select and Mask you can use 1px brush to work on single pixel precision, I just tested. If you have problem with greys create layer mask then use Levels from Image menu to remove them.

 

Not sure why and how you are using Object Selection Tool to add or subtract single pixel when its name is Object Selection Tool? And why in Select and Mask?

ShynnSup
ShynnSupAuthor
Inspiring
January 20, 2021

1px brush is useless to me. 

The name of the tool is irrelevant. Objects are made of pixels. Have you tried what I described on mu previous reply? Object selection tool 'add' mode is not reciporcal to its 'substract mode' For some reason I can substract very small regions (10x10px) but when I want to add them back nothing happens.... I need to select a much bigger region, and it applies anti alising to the selection, when substracion mode does not....

Bojan Živković11378569
Bojan Živković11378569
Community Expert
January 20, 2021

"The name of the tool is irrelevant. "

I think you are wrong here, I believe they are trying to create tool which will recognize object using AI, that is purpose not to add or subtract few pixels from selected area for what you have plenty of tools.

 

You can report or ask for feature on feedback site https://feedback.photoshop.com/

JJMack
JJMack
Community Expert
January 20, 2021

I do not understand what you are written. A Layer mask do not change any layer's pixels. That just hide or reveal a layer existing pixels by some pixel opacity. 0% to 100%. A layer mask is a gray scale channel. You control how you change the layer mask pixels. Some tools may always use anti-aliasing. If you do not what this don't use these tools. A bush type tool believe always uses anti-aliasing and blending mode

JJMack
ShynnSup
ShynnSupAuthor
Inspiring
January 20, 2021

Hello,

 

You use Hide when I use Add: Hide/Unhide = Add/Substract.

While inside the mask editor you have access to a limited number of tools.

 

       

 

The 'Object Selection Tool' (recntagle) gives you the option to Add or Substract from the selection. Now, when I am in 'Substract' mode, I can substract very precisely without anti alising. But when I change to 'Add' mode, it does not add my pixels back (does not unhide them).

 

Try it. Create a mask. Use the 'Object Selection Tool' to hide some pixels (zoom in until you see pixels). Now swap to 'Add' mode and try to unhide the pixels you just hid. It does not work....

 

 

 

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