Skip to main content
Z
Zesty_Glimmer5FA7
Participant
May 7, 2020
Question

Extracting Triangular Shape from Photo

  • May 7, 2020
  • 2 replies
  • 2833 views

I am trying to cut a triangular section from a photo using Photoshop Release 21.1.2 and I cant get past the stage of placing the triangle.  I cant find a way to cut the selected portion and save it.  I would welcome a crystal clear, step by step guide.   Thanks!   

This topic has been closed for replies.

2 replies

davescm
Community Expert
davescmCommunity Expert
Community Expert
May 8, 2020

Follow these steps exactly

 

1. Open your image.

2. Go to menu Image > Mode and change the mode to RGB colour.

3. Click on the little lock on the layer in the layers panel (the name will change from "Background" to "Layer 0")

4. Go to menu Select > Subject (some "marching ants" will appear around the triangle)

5. Go to menu Layer >Layer Mask >Reveal selection

 

You now have a mask around your triangle which makes the areas masked in black transparent.

If you want to save it with that transparency use PNG or PSD or TIFF. Do not use jpeg or you will lose the transparency

 

Dave

Mylenium
Mylenium
Legend
May 7, 2020

Copy & paste to a new image or invert the selection and delete the outsides. Start by actually reading the online help on how to work with selections and all that jazz...

 

Mylenium

Z
Zesty_Glimmer5FA7Author
Participant
May 7, 2020

Sorry, I clicked on 'correct answer' by mistake.  What I need is for someone to kindly crop this photo so that only the triangle sign remains.  I will be here all day if I have to work it out from the guides;  nothing I try works!    

JJMack
Community Expert
JJMackCommunity Expert
Community Expert
May 7, 2020

If that is on layer that  only has pixel content in that triangle area.  A Ctrl+Click on the layer content thumbnail  in the layers palette will select the layer triangle content.  Follow that with menu image crop.  Waring the document will be crop all layer will have content outside rectangle crop area discarded.  Document have rectangle canvases. The document will be cropped to the bounds of the triangle.

JJMack
Terms & ConditionsAccessibility statement
Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices