#!/usr/bin/python
# -*- coding: utf-8 -*-
import fitz # this is PyMuPDF
'''
Created on Fri Jan 08 17:00:00 2016
@author: Jorj X. McKie
===============================================================================
PyMuPDF demo program - updated to PyMuPDF 1.9
---------------------------------------------
Demonstrates some of MuPDF's non-PDF graphic capabilities.
Read an image and create a new one consisting of 3 * 4 tiles of it.
===============================================================================
'''
# create a pixel map from any supported image file: BMP, JPEG, PNG, GIF, TIFF, JXR
pix0 = fitz.Pixmap("supported_img.xxx") # create a pixel map from file
# calculate target pixmap colorspace and dimensions, then create it
tar_csp = pix0.getColorspace() # copy input's colorspace
tar_width = pix0.width * 3 # 3 columns
tar_height = pix0.height * 4 # 4 rows
tar_irect = fitz.IRect(0, 0, tar_width, tar_height) # we need to define a target rectangle
tar_pix = fitz.Pixmap(tar_csp, tar_irect) # now create target pixel map
tar_pix.clearWith(90) # clear pixmap with a lively gray: (R, G, B) = (90, 90, 90)
# now fill target with 3 * 4 tiles of input picture
for i in list(range(4)):
pix0.y = i * pix0.height # modify input's y coord
for j in list(range(3)):
pix0.x = j * pix0.width # modify input's x coord
tar_pix.copyPixmap(pix0, pix0.getIRect()) # copy input to new loc
# save intermediate images too, to display what is happening
fn = "target-" + str(i) + str(j) + ".png"
tar_pix.writePNG(fn)
Diff to Previous Revision
--- revision 3 2016-03-19 12:40:17
+++ revision 4 2016-04-26 19:54:31
@@ -8,22 +8,22 @@
@author: Jorj X. McKie
===============================================================================
-PyMuPDF demo program
---------------------
+PyMuPDF demo program - updated to PyMuPDF 1.9
+---------------------------------------------
Demonstrates some of MuPDF's non-PDF graphic capabilities.
-Read a PNG image and create a new one consisting of 3 * 4 tiles of it.
+Read an image and create a new one consisting of 3 * 4 tiles of it.
===============================================================================
'''
-# read in picture image as a pixmap
-pic = open("editra.png", "rb").read() # read some RGB image into memory
-pix0 = fitz.Pixmap(pic, len(pic)) # create a pixel map out of it
+# create a pixel map from any supported image file: BMP, JPEG, PNG, GIF, TIFF, JXR
+pix0 = fitz.Pixmap("supported_img.xxx") # create a pixel map from file
-# calculate target pixmap dimensions and then create it
-tar_width = pix0.width * 3
-tar_height = pix0.height * 4
+# calculate target pixmap colorspace and dimensions, then create it
+tar_csp = pix0.getColorspace() # copy input's colorspace
+tar_width = pix0.width * 3 # 3 columns
+tar_height = pix0.height * 4 # 4 rows
tar_irect = fitz.IRect(0, 0, tar_width, tar_height) # we need to define a target rectangle
-tar_pix = fitz.Pixmap(fitz.csRGB, tar_irect) # now create target RGB pixel map
+tar_pix = fitz.Pixmap(tar_csp, tar_irect) # now create target pixel map
tar_pix.clearWith(90) # clear pixmap with a lively gray: (R, G, B) = (90, 90, 90)
# now fill target with 3 * 4 tiles of input picture
@@ -32,6 +32,6 @@
for j in list(range(3)):
pix0.x = j * pix0.width # modify input's x coord
tar_pix.copyPixmap(pix0, pix0.getIRect()) # copy input to new loc
- # save intermediate images to show what is happening
+ # save intermediate images too, to display what is happening
fn = "target-" + str(i) + str(j) + ".png"
tar_pix.writePNG(fn)
