numpy于Pillow互转的方法是什么

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实验代码展示:

from PIL import Image, ImageDrawimport numpy as npim = Image.open("bryant.jpg")# im.show() ima = np.asarray(im)a.shape, a.dtype, a.min(), a.max()type(a.shape)im2 = Image.fromarray(a)# im2.show()im2# The crop method from the Image module takes four coordinates as input.# The right can also be represented as (left+width)# and lower can be represented as (upper+height).(left, upper, right, lower) = (500, 20, 900, 400)# Here the image "im" is cropped and assigned to new variable im_cropim_crop = im.crop((left, upper, right, lower))# im_crop.show()im_cropim(width, height) = (im.width // 2, im.height // 2)im_resized = im.resize((width, height))# im_resized.show()im_resizedim.resize((200, 300),box=(500, 20, 900, 400))imdraw = ImageDraw.Draw(im) draw.rectangle((500, 20, 900, 400),outline=(255,255,255),width=8,)im

运行结果展示:

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