Python generates images of any size in bulk

Achieve Results

From the source image, 1000 images are generated in the current working directory under the/IMG directory, from 1*1 to 1000*1000 pixels, respectively.

The effect is as follows:

Directory structure

Implementation examples

#-*-Coding:utf-8-*-import threadingfrom PIL Import imageimage_size = range (1, 1001) def start (): For  size in Image_ Size:    t = Threading. Thread (Target=create_image, args= (size,))    T.start () def create_image (size):  pri_image = Image.open (" Origin.png ")  pri_image.resize ((size, size), Image.antialias). Save (" img/png_%d.png "% size) if __name__ = =" __main_ _ ":  Start ()

Note: The project requires a reference PIL library.

Here, we use the resize function.

As with most script libraries, resize functions also support chained calls. First by resize((size, size), Image.ANTIALIAS) specifying the size and quality, where for parameter two:

Parameter values	Meaning
Image.nearest	Low quality
Image.bilinear	Bilinear
Image.bicubic	Three secondary spline interpolation
Image.antialias	Quality

save("img/png_%d.png" % size)the method is eventually called to write to the specified location in the specified format.

In addition, multi-threaded concurrency is used, given the large number of linear-intensive operations.

Conclusion

The above is the use of Python batch generation of any size picture of the entire content, I hope to learn from you and use Python can be helpful.