Batch edit photos, shave off 20 pixels off the top

[davemchine]

I have hundreds of png files that need the top 20 pixels shaved off. Is there a way to do this by batch? I’m reasonably good at terminal or I have graphic converter. Thanks.

[special]

Try ChatGPT to write a simple Python code.

[davemchine]

I ended up using the command

mogrify -crop 1280x1024+0+0 *.png

which I found at https://superuser.com/questions/1161340/...mmand-line .

Then I wrote a simple script to do the job for me as it is a reoccurring situation.

#!/bin/bash

while true; do

    echo 
This will modify the files. Hope you have a backup!
    read -p 
Are you in directory with image files? 
 yn

    case $yn in

        [Yy]* ) echo 
; 

                read -p 
What extension do the image files have?  
 extention

                identify *.
$extention
                echo 
**Now you know the resolution of the files in dir


                echo 
Now set the width and length
                echo 
For Architectural Digest use 2064 and 2602
                echo 

                read -p 
What width from left border is desired?  
 width

                read -p 
What length is desired?                  
 length

                echo 

                echo 
Now set the offsets
                echo 
For Architectural Digest use 0 and 150
                echo 

                read -p 
What offset from left is desired?        
 xoffset

                read -p 
What offset from top is desired?         
 yoffset

                echo 

                echo 
Modifying original files, hope you made a backup...
                mogrify -verbose -crop 
$width
x
$length
+
$xoffset
+
$yoffset
 *.
$extention
                break;; 

        [Nn]* ) echo 
Please place files into folder and run again.
; exit;;

        * ) echo 
Please answer yes or no.
;;

    esac

done