Python uses the PIL library to make changes to the picture size

Python is able to use the PIL library to change the image size of the operation, of course, the general is not required, but in some special use occasions, it is necessary to change the image grayscale or size, etc., in fact, with Python to change the size of the picture is quite simple, only a few lines of code, There may be a little bit of the beginning of the small partners may not know PiL library, PIL is a library shorthand, his real name is called pillow, therefore, need pip install pillow with anaconda is Conda install pillow don't pip/ Conda install PIL, paste the code below, I hope that some small partners can help

#encoding =utf-8import osimport os.pathfrom PIL import image ' Filein: input image fileout: Output image width: Output image height: Output image altitude type: Output image type (PNG, GIF, JPEG ...) "Def resizeimage (Filein, fileout, width, height, type):  img = Image.open (filein) out  = Img.resize ((width, Height), image.antialias) #resize Image with high-quality  out.save (fileout, type) if __name__ = = "__main__":  Filein = R ' image\test.png '  fileout = R ' image\testout.png '  width =  height = =  ' png '  Resizeimage (Filein, fileout, width, height, type)

　　

Python uses the PIL library to make changes to the picture size