python – 我可以通过编程方式将matplotlib图形插入Excel吗？

openpyxl似乎不支持图像嵌入. xlwt确实只有bmp.

或者,如果我可以通过编程方式将tiff转换为bmp,那也可能有所帮助.

我们欢迎任何一个想法.

如同

Embed multiple jpeg images into EXCEL programmatically?

但是,从tiff到bmp的转换是可以接受的,因为我的图表量很小(每个文件大约10个).

from PIL import Image

file_in = "image.png"
img = Image.open(file_in)
file_out = 'test1.bmp'
print len(img.split()) # test
if len(img.split()) == 4:
    # prevent IOError: cannot write mode RGBA as BMP
    r, g, b, a = img.split()
    img = Image.merge("RGB", (r, g, b))
    img.save(file_out)
else:
    img.save(file_out)

from xlwt import Workbook
w = Workbook()
ws = w.add_sheet('Image')
ws.insert_bitmap(file_out, 0, 0)
w.save('images.xls')

代码的图像部分来自Ene Urans,这里是http://www.daniweb.com/software-development/python/threads/253957/converting-an-image-file-png-to-a-bitmap-file.

xlwt只是形成我在http://www.simplistix.co.uk/presentations/python-excel.pdf找到的xlwt的文档.