resize and scale image(s)

process_images_func.py

# install PIL for this!
# or just google'it - 'pip install PIL'


def process_photos(folder='', scale=1.0, fileformat='.jpg'):
	'''
	Erase all exif data and reScale it by 'scale' parameter

	folder - is path, where all images are stored
	scale - scale factor
	fileformat - process only .jpg files only
	'''

	if folder == '':
		return

	from PIL import Image
	import os

	os.chdir(folder)

	cur = os.getcwd()
	cat = os.path.join

	photos_only = [ file for file in os.listdir() if os.path.isfile(file) and file[-4:] == fileformat]

	print(photos_only)

	for index, file in enumerate(photos_only):

		our_file = cat(cur, file)
		new_name = 'file ' + str(index+1) + fileformat
		
		print(our_file)

		image = Image.open(our_file)

		# next 3 lines strip exif
		data = list(image.getdata())
		image_without_exif = Image.new(image.mode, image.size)
		image_without_exif.putdata(data, scale=0.5)

		if scale == 1.0:
			image_without_exif.save(new_name)
			continue

		# resizing
		resized_half_width = int(image_without_exif.size[0] * scale)
		resized_half_height = int(image_without_exif.size[1] * scale)

		w_h_scale = (resized_half_width, resized_half_height)

		image_without_exif_resized = image_without_exif.resize(w_h_scale, Image.ANTIALIAS)

		image_without_exif_resized.save(new_name)

process_photos(r'C:\test\path',scale=0.5)