[Batch process images] resize/crop #python #graphics #batch #resize #crop

crop-and-resize.py

#Python 2.7, PIL 1.1.7

import Image
import glob
import os

#Function to resize image, preserving aspect ratio
def resizeAspect(im, size):
    w,h = im.size
    aspect=min(size[0]/float(w), size[1]/float(h))
    return im.resize((int(w*aspect),int(h*aspect)),Image.ANTIALIAS)

imgList=glob.glob('C:/icons/*.png')         #Find all png images in a directory

for img in imgList:                              #Loop through all found images
    im = Image.open(img)                         #open the image
    print "resizing:",os.path.basename(img)
    w,h = im.size                                #Get image width and height
    if min(w,h)<600:                             #Check if either dimension is smaller then 600
        im=resizeAspect(im,(600,600))            #Re-size Image
        w,h = im.size                            #update image size
    center = [int(w/2.0),int(h/2.0)]             #Calculate Center
    box = (center[0]-300, center[1]-300, center[0]+300, center[1]+300) #Defines a box where you want it to be cropped
    croppedIm = im.crop(box)                     #Crop the image
    #croppedIm.show()                            #Show the cropped image
    fileName, fileExtension=os.path.splitext(img)
    croppedIm.save(fileName+'_crop.png', "PNG")  #Save the cropped image