Resizing images to specific pixel width and height in Automator

Question

I've been searching for about an hour now to try and find a way to do this.

Is there any way in Automator to resize images to a specified width and height, instead of just the longest size? I need my output images to be a specific pixel width and height, even if it is disproportionate.

I have photoshop, so is there a way to get Automator to do this?

Thanks

Fiduciary

How about: maclife.com/article/howtos/how_batchresize_images_automator – Reisfield

Answer 1

There is no way to do what you need with a standard Automator step.

Anyway, you can use this Python script:

import sys
import CoreGraphics

RESIZE_WIDTH = 100
RESIZE_HEIGHT = 100

def resizeimage(source_image_file, target_image_file, target_width, target_height):
    source_image = CoreGraphics.CGImageImport(CoreGraphics.CGDataProviderCreateWithFilename(source_image_file))

    source_width = source_image.getWidth()
    source_height = source_image.getHeight()

    source_image_rect = CoreGraphics.CGRectMake(0, 0, source_width, source_height)
    new_image = source_image.createWithImageInRect(source_image_rect)

    colors_space = CoreGraphics.CGColorSpaceCreateDeviceRGB()
    colors = CoreGraphics.CGFloatArray(5)
    context = CoreGraphics.CGBitmapContextCreateWithColor(target_width, target_height, colors_space, colors)
    context.setInterpolationQuality(CoreGraphics.kCGInterpolationHigh)
    new_image_rect = CoreGraphics.CGRectMake(0, 0, target_width, target_height)
    context.drawImage(new_image_rect, new_image)
    context.writeToFile(target_image_file, CoreGraphics.kCGImageFormatJPEG)



def main(argv):
    for image_file_name in argv:
        resizeimage(image_file_name, image_file_name, RESIZE_WIDTH, RESIZE_HEIGHT)

if __name__ == "__main__":
    main(sys.argv[1:])

Set RESIZE_WIDTH and RESIZE_HEIGHT to whichever value you need.

Add it as a Run Shell Script step:

and set Shell to /use/bin/python and Pass input to as arguments.

EDIT: there's a rather simpler way (suggested by epatel) to achieve this, using sips.

You can create a Run Shell Script step with this command:

sips --resampleHeightWidth 100 100 "$@"

Note: Double Quotes need to surround $@ or you will get an error.

Wretched

Could have used sips too, a command line tool available on OSX. – Lambaste

Thanks for this answer...really saved hours of my time. – Dedans

Actually, it is possible directly in Automator. See my answer. – Handclap

Answer 2

Sure, use the "Crop Images" action and set the "Scale before crop", "Width" and "Height" options as desired. You might also find the "Pad Images" action helpful.

Handclap

This exactly answers the question to my eyes and was the answer I was looking for! Thanks! – Hyperextension