How to process Image File by Pillow Library in Python
Xiaobian to share with you how Python Pillow library image file processing, I believe most people still do not know how to share this article for your reference, I hope you have a lot of harvest after reading this article, let's go to understand it together!
Open PyCharm and create a new.py file.
2. Configuration environment
In this article, Python 3.6 version development click ok 2, library installation use
Enter pilot in the search field, select the first pilot, and install.
Installation complete!
In this figure we see that the pilot library has been configured successfully.
3. Overview of PIL Library
The PIL library can fulfill the functional requirements of image archiving and image processing:
(1) Image archiving: batch processing, image preview generation, image format conversion, etc.;
(2) Image processing: image basic processing, pixel processing, color processing, etc.
4. Code segment
The pictures used this time are:
The absolute path is D:\python jobs\dog.jpg
#Image processing: from PIL import Imagefrom PIL import ImageFilterfrom PIL import ImageEnhanceimg = Image.open ("D:\python\dog.jpg")print(img.format) #Output basic picture information print(img.mode)print(img.size)img_resize = img.resize((256,256)) #Adjust size img_resize.save("dogresize.jpg")img_rotate = img.rotate(45) #rotate img_rotate.save("dorotate.jpg")om=img.convert('L') #greyscale om.save ('doggray.jpg ')om = img.filter(ImageFilter.CONTOUR) #Image outline om.save ('dogcontour.jpg ')om = ImageEnhance.Contrast(img).enhance(20) #Contrast is 10 times the original om.save ('dogencontrast.jpg ')#Change image format: from PIL import Imageos filelist =["dog.jpg", "dogcontour.jpg", "dogencontrast.jpg", "doggray.jpg", "dogresize.jpg", "dogrotate.jpg", ]for infile in filelist: outfile = os.path.splitext(infile)[0] + ".png" if infile != outfile: try: Image.open(infile).save(outfile) except IOError: print ("cannot convert", infile)
Right mouse click Run
operation results
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