Recipe 580663 revision 2

Diff to Previous Revision

--- revision 1 2016-05-21 22:20:21
+++ revision 2 2016-05-22 16:45:52
@@ -1,68 +1,101 @@
-# Image Resizer/Converter
+# Image Resizer/Converter [Batch Mode]
 # Supported Formats:
 # http://effbot.org/imagingbook/formats.htm
 # FB36 - 20160521
 from PIL import Image, ImageFilter 
-import sys, os
+import sys, os, glob
+output = False
 n = len(sys.argv)
 if n < 3 or n > 7:
     usage = "USAGE:\n"
     usage += "[python] ImageResizer.py"
-    usage += " [Path]InputImageFileName [Path]OutputImageFileName"
-    usage += " [Width] [Height] [Method] [Filter]\n"
+    usage += " [Path]ImageFileName [Format=...]"
+    usage += " [Width=...] [Height=...] [Method=...] [Filter=...]\n"
     usage += "[]: optional argument!\n"
+    usage += "Format: JPG/PNG/..."
     usage += "Method: NEAREST(Default)/BILINEAR/BICUBIC/ANTIALIAS\n"
     usage += "Filter: BLUR/CONTOUR/DETAIL/EDGE_ENHANCE/EDGE_ENHANCE_MORE"
     usage += "/EMBOSS/FIND_EDGES/SMOOTH/SMOOTH_MORE/SHARPEN\n"
-    usage += "Use quotes if file paths/names contain spaces!"
+    usage += "Use quotes if file paths/names contain spaces!\n"
+    usage += "ImageFileName can contain wildcards (*/?)!"
     print usage
     os._exit(1) # sys.exit()
-if n > 2:
-    inputImageFilePath = sys.argv[1]
-    outputImageFilePath = sys.argv[2]
-    image = Image.open(inputImageFilePath)
-    (width, height) = image.size
-if n > 3:
-    width = int(sys.argv[3]) # in pixels
-if n > 4:
-    height = int(sys.argv[4]) # in pixels
+imageFilePath = sys.argv[1]
+imgFormat = ""
+width = 0
+height = 0
 method = ""
-if n > 5:
-    method = sys.argv[5].upper()
 imgFilter = ""
-if n > 6:
-    imgFilter = sys.argv[6].upper()
+for i in range(n - 2):
+    args = sys.argv[i + 2].split("=")
+    if args[0] == "Format":
+        imgFormat = args[1].upper()
+        ext = imgFormat
+        if imgFormat == "JPG": imgFormat = "JPEG"
+        if imgFormat == "TIF": imgFormat = "TIFF"
+    if args[0] == "Width":
+        width = int(args[1]) # in pixels
+    if args[0] == "Height":
+        height = int(args[1]) # in pixels
+    if args[0] == "Method":
+        method = args[1].upper()
+    if args[0] == "Filter":
+        imgFilter = args[1].upper()
 
-if method == "NEAREST":
-    image = image.resize((width, height), Image.NEAREST)
-elif method == "BILINEAR":
-    image = image.resize((width, height), Image.BILINEAR)
-elif method == "BICUBIC":
-    image = image.resize((width, height), Image.BICUBIC)
-elif method == "ANTIALIAS":
-    image = image.resize((width, height), Image.ANTIALIAS)
-else:
-    image = image.resize((width, height))
+fileList = glob.glob(imageFilePath)
+for filePath in fileList:
+    if output:
+        print filePath
+    image = Image.open(filePath)
+    (imgWidth, imgHeight) = image.size
+    if width == 0 and height == 0:
+        imWidth = imgWidth
+        imHeight = imgHeight
+    elif width > 0 and height > 0:
+        imWidth = width
+        imHeight = height
+    # preserve aspect ratio
+    elif width > 0 and height == 0:
+        imWidth = width
+        imHeight = int(imgHeight * width / imgWidth)
+    elif width == 0 and height > 0:
+        imWidth = int(imgWidth * height / imgHeight)
+        imHeight = height
 
-if imgFilter == "BLUR":
-    image = image.filter(ImageFilter.BLUR)
-if imgFilter == "CONTOUR":
-    image = image.filter(ImageFilter.CONTOUR)
-if imgFilter == "DETAIL":
-    image = image.filter(ImageFilter.DETAIL)
-if imgFilter == "EDGE_ENHANCE":
-    image = image.filter(ImageFilter.EDGE_ENHANCE)
-if imgFilter == "EDGE_ENHANCE_MORE":
-    image = image.filter(ImageFilter.EDGE_ENHANCE_MORE)
-if imgFilter == "EMBOSS":
-    image = image.filter(ImageFilter.EMBOSS)
-if imgFilter == "FIND_EDGES":
-    image = image.filter(ImageFilter.FIND_EDGES)
-if imgFilter == "SMOOTH":
-    image = image.filter(ImageFilter.SMOOTH)
-if imgFilter == "SMOOTH_MORE":
-    image = image.filter(ImageFilter.SMOOTH_MORE)
-if imgFilter == "SHARPEN":
-    image = image.filter(ImageFilter.SHARPEN)
+    if method == "NEAREST":
+        image = image.resize((imWidth, imHeight), Image.NEAREST)
+    elif method == "BILINEAR":
+        image = image.resize((imWidth, imHeight), Image.BILINEAR)
+    elif method == "BICUBIC":
+        image = image.resize((imWidth, imHeight), Image.BICUBIC)
+    elif method == "ANTIALIAS":
+        image = image.resize((imWidth, imHeight), Image.ANTIALIAS)
+    else:
+        image = image.resize((imWidth, imHeight))
 
-image.save(outputImageFilePath)
+    if imgFilter == "BLUR":
+        image = image.filter(ImageFilter.BLUR)
+    if imgFilter == "CONTOUR":
+        image = image.filter(ImageFilter.CONTOUR)
+    if imgFilter == "DETAIL":
+        image = image.filter(ImageFilter.DETAIL)
+    if imgFilter == "EDGE_ENHANCE":
+        image = image.filter(ImageFilter.EDGE_ENHANCE)
+    if imgFilter == "EDGE_ENHANCE_MORE":
+        image = image.filter(ImageFilter.EDGE_ENHANCE_MORE)
+    if imgFilter == "EMBOSS":
+        image = image.filter(ImageFilter.EMBOSS)
+    if imgFilter == "FIND_EDGES":
+        image = image.filter(ImageFilter.FIND_EDGES)
+    if imgFilter == "SMOOTH":
+        image = image.filter(ImageFilter.SMOOTH)
+    if imgFilter == "SMOOTH_MORE":
+        image = image.filter(ImageFilter.SMOOTH_MORE)
+    if imgFilter == "SHARPEN":
+        image = image.filter(ImageFilter.SHARPEN)
+
+    if imgFormat != "":
+        filePathStr = os.path.normpath(os.path.splitext(filePath)[0] + "." + ext)
+        image.save(filePathStr, imgFormat)
+    else:
+        image.save(filePath)