how to show a bitmap?

[Yun Mao]

Hi,
I have a two dimentional array (by Numeric Python) available, and it
represent a grayscaled bitmap picture. How to display it? Thank you!


Yun

 

[Diez B. Roggisch]

I have a two dimentional array (by Numeric Python) available, and it

represent a grayscaled bitmap picture. How to display it? Thank you!

You can use pygame.

Diez

 

[Yun Mao]

Could you please be a little more specific?

Yun

 

[Michel Claveau/Hamster]

http://www.pygame.org

 

[Diez B. Roggisch]

Could you please be a little more specific?

Its well documented on www.pygame.org. You have to look into the module
surfarray, which makes it possible to access and manipulate pixel data
using - guess what - Numeric arrays.

Look in the code examples for some effects that utilize this - AFAIK there
is something like a fire or motion blurring. These access pixel data. Just
plug in your array, and you should be done.

Regards, Diez

 

[Diez B. Roggisch]

Look in the code examples for some effects that utilize this - AFAIK there

is something like a fire or motion blurring. These access pixel data. Just
plug in your array, and you should be done.

http://www.pygame.org/pcr/numpy_flames/index.php

This is the flames example. The function in question is blit_array - look it
up in the docs. This example even deals with indexed_bitmap_data, which is
what you want, as you have a only one value per pixel.

Regards,

Diez