[gct13]

Hello, could someone set me on the right path for Windows Photoshop scripting (I assume this would require a script)...

My objective is to iterate thru a folder of images, center crop the images based on height/width ratio variables, and save the images within the same folder. I've detailed the 2 IF statements conditionals below-

On all the calculations, round up to the nearest pixel.

Variables:
 WidthRatio  = 4
 HeightRatio = 3

-- Image's aspect ratio is greater than the desired ratio
-- so crop out left and right areas of the Image
If (Image's width / Image's height) > (WidthRatio/ HeightRatio)
 Set selection
  To: rectangle
  Top: 0 px
  Left: (Image's width - (Image's height * (WidthRatio/HeightRatio))) / 2  px
  Bottom: (Image's height) px
  Right: (Image's width + (Image's height * (WidthRatio/HeightRatio))) / 2  px
 Crop
 Save image
End If

-- Image's aspect ratio is less than the desired ratio
-- so crop out top and bottom areas of the Image
If (Image's width / Image's height) < (WidthRatio/ HeightRatio)
 Set selection
  To: rectangle
  Top: (Image's height - (Image's width * (HeightRatio/WidthRatio))) / 2  px
  Left: 0 px
  Bottom: (Image's height + (Image's width * (HeightRatio/WidthRatio))) / 2  px
  Right: (Image's width) px
 Crop
 Save image
End If

Thanks,
Dan

[DannyRaphael]

Hi Dan:

Yep...this would need a script and FWIW it's way over my head scripting wise (I'm a rookie at this).

In addition to RetouchPRO there are two other places where I post questions of this nature. If you haven't yet, I highly recommend you check them out:

* http://www.ps-scripts.com
* http://www.adobe.com - Support, Photoshop scripting forum

[gct13]

Fyi I got it work using this script:

// Get the active document and make a new selection.

// enable double clicking from the Macintosh Finder or the Windows Explorer
#target photoshop

// in case we double clicked the file
app.bringToFront();

// debug level: 0-2 (0:disable, 1:break on error, 2:break at beginning)
// $.level = 0;
// debugger; // launch debugger on next line


if (app.documents.length > 0) {    

 var docRef = app.activeDocument;
 var WidthRatio = 4;
 var HeightRatio = 3;
 var boundTop;
 var boundLeft;
 var boundRight;
 var boundBottom;

// Image's aspect ratio is greater than the desired ratio
// so crop out left and right areas of the Image
if ((docRef.width / docRef.height) > (WidthRatio/ HeightRatio))
{
 boundTop = 0;
 boundLeft = ((docRef.width - (docRef.height * (WidthRatio/HeightRatio))) / 2);
 boundBottom = docRef.height;
 boundRight = ((docRef.width + (docRef.height * (WidthRatio/HeightRatio))) / 2);
 bounds = new Array(boundLeft,boundTop,boundRight,boundBottom);
 docRef.crop(bounds);
}

// Image's aspect ratio is less than the desired ratio
// so crop out top and bottom areas of the Image
if ((docRef.width / docRef.height) < (WidthRatio/ HeightRatio))
{
 boundTop = ((docRef.height - (docRef.width * (HeightRatio/WidthRatio))) / 2);
 boundLeft = 0;
 boundBottom = ((docRef.height + (docRef.width * (HeightRatio/WidthRatio))) / 2);
 boundRight = docRef.width;
 bounds = new Array(boundLeft,boundTop,boundRight,boundBottom);
 docRef.crop(bounds);
}

// bounds = new Array(10, 10, app.activeDocument.width - 10, app.activeDocument.height - 10);
// docRef.crop(bounds);

 boundTop = null;
 boundLeft = null;
 boundRight = null;
 boundBottom = null;
 WidthRatio = null;
 HeightRatio = null;
 docRef = null;

}

[DannyRaphael]

Well done. Thanks for sharing your solution.

Under what version of Photoshop did you write this script?

Reason I ask: There are subtle syntax differences between versions.

[gct13]

The script works with CS3 (haven't tested any other versions).

Thanks