ImageProc.py | Basic Image processing in PIL

#! /usr/bin/env python
# ImageProc.py
# Author: Abdul Fatir
# E-Mail: [email protected]

# The Image module contains the basic functions of image modification
from PIL import Image
# The ImageFilter module contains the filters that can be applied on the image
from PIL import ImageFilter

# Example 1 : Creating a new image and saving it with custom pixel data
Width,Height = ImageSize = (1280,800)
# Image.new(IMAGE_MODE, IMAGE_SIZE) where IMAGE_SIZE is a two tuple containing (Width,Height)
# IMAGE_MODE is string and can be "RGB" for RGB Images, "L" for Gray-scale and few more.
customPixImage = Image.new("RGB", ImageSize)
PixelData = customPixImage.load()
# Now we add our custom pixel data to the 2D array PixelData
for y in range(Height):
    for x in range(Width):
        PixelData[x,y] = (100, x*255/1280, y*255/800) # PixelData[x,y] = (R,G,B)
customPixImage.save("CustomPixelImage.png")
del customPixImage

# Example 2 : Opening an image, cropping, resizing and converting it to thumbnail
ImgName = 'church.png'
# Image.open(FILE_NAME) is used to open an image
churchImage = Image.open(ImgName)
W,H = churchImage.size
print '[',ImgName,'] - Format: ',churchImage.format,', Mode: ',churchImage.mode,', Size: ',churchImage.size

# The crop(box) function takes a four tuple containing co-ordinates of top-left and bottom-right
croppedImage=churchImage.crop((0,0,300,200))
croppedImage.save('cropped.png')
del croppedImage

# The resize((W,H)) function takes a two tuple containing width and height
resizedImage=churchImage.resize((300,200))
resizedImage.save('resized.png')
del resizedImage

# The thumbnail((W,H)) function takes a two tuple containing width and height
thumb=churchImage.copy()
thumb.thumbnail((200,200))
thumb.save('thumb.png')
del thumb

# Example 3 : Converting images to different modes
grayscale = churchImage.convert("L")
grayscale.save('grayscale.png')
del grayscale

bw = churchImage.convert("1")
bw.save('blackwhite.png')
del bw

cmyk = churchImage.convert("CMYK")
cmyk.save('cmyk.jpg')
del cmyk

# Example 4 : Applying filters to images

blur = churchImage.filter(ImageFilter.BLUR)
blur.save('blurred.png')
del blur

emboss = churchImage.filter(ImageFilter.EMBOSS)
emboss.save('embossed.png')
del emboss

contour = churchImage.filter(ImageFilter.CONTOUR)
contour.save('contoured.png')
del contour

detail = churchImage.filter(ImageFilter.DETAIL)
detail.save('detail.png')
del detail

edge= churchImage.filter(ImageFilter.EDGE_ENHANCE)
edge.save('edgeenhanced.png')
del edge

smooth= churchImage.filter(ImageFilter.SMOOTH)
smooth.save('smooth.png')
del smooth