Detailed explanation of using python to convert pictures into excel document format-Python Tutorial-php.cn

Detailed explanation of using python to convert pictures into excel document format

小云云

Release： 2018-01-03 10:26:59

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This article mainly introduces the relevant content about using python to convert pictures into excel documents. I wrote a small piece of Python code to convert pictures into Excel. It is purely for entertainment. The following article mainly introduces to you about using python to convert pictures into excel documents. Friends who need relevant information on converting pictures into excel document format can refer to it. Let’s take a look below.

Implementation steps

Read the image and obtain the RGB value of each pixel of the image;
According to each pixel The RGB value of the point sets the color value of each square in excel;
Write to the excel file according to the coordinates of the pixel point;
Save Exit;

Sample code

from PIL import Image
import numpy as np
import time
import matplotlib.pyplot as plt
import xlsxwriter
def get_xy(row, col):
 table = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
 num1 = col / 26
 num2 = col % 26
 # print num1, num2
 if num1 == 0:
  return table[num2 - 1] + str(row)
 else:
  return table[num1-1] + table[num2 - 1] + str(row)
def main():
 img = np.array(Image.open('whale.jpeg'))
 
 # plt.figure("whale")
 # plt.imshow(img)
 # plt.show()
 rows, cols, dims = img.shape
 print img.shape 
 print img.dtype 
 print img.size 
 print type(img)
 # print img[188, 188, 0]
 excel = xlsxwriter.Workbook('image_excel.xlsx')
 cellformat = excel.add_format({'bg_color': '#123456',
         'font_color': '#654321'})
 worksheet1 = excel.add_worksheet()
 data = []
 color = [''] * cols
 cellcolor = ""
 for i in range(rows):
  for j in range(cols):
   # print hex(img[i, j, 0]), hex(img[i, j, 1]), hex(img[i, j, 2])
   cellcolor = (hex(img[i, j, 0]) + hex(img[i, j, 1]) + hex(img[i, j, 2])).replace('0x', '')
   # print cellcolor
   
   cellformat = excel.add_format({'bg_color': '#'+cellcolor, 
           'font_color': '#'+cellcolor})
   
   # cellformat = excel.add_format({'bg_color': '#C6EFCE', 
   #        'font_color': '#006100'})
   
   worksheet1.conditional_format(get_xy(i, j), {'type': 'cell',
              'criteria': '<',
              'value': 50,
              'format': cellformat})
  # data.append(data_row)
 excel.close() 

if __name__ == '__main__':
 main()
 # print get_xy(133, 27)

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