从像素列表创建Gtk.Image

Question

I am working on a GTK program that manipulates an image based on user input. I am using pypng to read the image and am now looking for a way to create a Gtk.Image from a pixel list without creating an intermediate image file.

Answer 1

Not entirely easy to do in Python directly. You could do this, using GtkImage , which can load images from a GdkPixbuf.Pixbuf using a method called from_pixdata() .

A higher level of doing this is using (for example) the PIL (in python2 ) or Pillow ( python3 ) . There, you can construct images using the Image module and the P IL.Image.frombytes() , PIL.Image.fromstring() , and other methods.

There are also functions in matplotlib which convert arrays immediately to images.