使用Python将.h5文件转换为.jpg [英] Convert .h5 file to .jpg with Python

问题描述

我目前有一个.h5文件，其中包含灰度图像.我需要将其转换为.jpg.

I currently have a .h5 file containing grayscale imagery. I need to convert it to a .jpg.

有人对此有任何经验吗?

Does anybody have any experience with this?

注意:我可以将h5文件转换为numpy数组，然后使用pypng之类的外部库将其转换为png.但我想知道是否有更有效的方法来转换为图像，最好是转换为.jpg.

推荐答案

关键要素:

h5py读取h5文件. 确定图像的格式并使用PIL.

h5py to read the h5 file. Determine the format of your image and use PIL.

让我们假设它是RGB格式( https://support. hdfgroup.org/products/java/hdfview/UsersGuide/ug06imageview.html )

Let us suppose it's RGB format (https://support.hdfgroup.org/products/java/hdfview/UsersGuide/ug06imageview.html)

假设您的图片位于照片/图片1"，就可以了.

Suppose your image is located at Photos/Image 1 then you can do.

import h5py
import numpy as np
from PIL import Image

hdf = h5py.File("Sample.h5",'r')
array = hdf["Photos/Image 1"][:]
img = Image.fromarray(array.astype('uint8'), 'RGB')
img.save("yourimage.thumbnail", "JPEG")
img.show()

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