Chow's Notes

python调用win32接口在excel中作像素画

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取一张图片的每个像素点，然后将其插入到单元格中

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#coding=utf-8
from PIL import Image
import win32com.client
import sys
import os
def getImageRGBdata(imgpath):
	img=Image.open(imgpath)
	width,height=img.size
	data=img.getdata()
	datalist=list(data)
	whlist=[]
	j=0
	for i in range(height):
		whlist.append(datalist[j:(i+1)*width])
		j=(i+1)*width
	return whlist
def rgb_to_hex(rgb):
	bgr=tuple(reversed(rgb))
	strValue = '%02x%02x%02x' % bgr
	iValue = int(strValue, 16)
	return iValue
def creatExcel(imgdata,savename):
	xl = win32com.client.Dispatch("Excel.Application")
	ss = xl.Workbooks.Add()
	sh = ss.ActiveSheet
	xl.Visible = True
	for  i,line in enumerate(imgdata):
		print "draw %d line" %  i
		for j,col in enumerate(imgdata[i]):
			sh.Cells(i+1,j+1).Interior.Color=rgb_to_hex(col)
			sh.Cells(i+1,j+1).RowHeight=3
			sh.Cells(i+1,j+1).ColumnWidth=0.3
	curdir=os.getcwd()
	ss.SaveAs(curdir+"\\"+savename)
	ss.Close(False)
	xl.Application.Quit()
def main(imgpath,savename):
	imgdata=getImageRGBdata(imgpath)
	creatExcel(imgdata,savename)
if __name__=="__main__":
	argv=sys.argv[1:]
	if not argv:
		imgpath=r'E:\workspace\pytest\images\xxxxxxxxx.jpg'
		savename=r'20151218.xlsx'
	else:
		imgpath=argv[0]
		savename=argv[1]
	main(imgpath,savename)