Read out pixels from .jpgs

[Kai Berger]

Hi together,

I want to read out every pixel (that means its colour value) from
a jpeg in an array.

Is there a function in c++, that fulfills this task?
(In java there is a certain function called PixelGrabber)

Thx,

Kai

 

[Allan Bruce]

Hi together,

I want to read out every pixel (that means its colour value) from
a jpeg in an array.

Is there a function in c++, that fulfills this task?
(In java there is a certain function called PixelGrabber)

Thx,

Kai

You will need to use a library to read the jpeg format, there is one from
www.ijg.org that you can use. There is nothing in the C++ standard that
deals with jpegs directly.
Allan

 

[John Carson]

Hi together,

I want to read out every pixel (that means its colour value) from
a jpeg in an array.

Is there a function in c++, that fulfills this task?
(In java there is a certain function called PixelGrabber)

Thx,

Kai

Standard C++ knows nothing about graphics. You will need a 3rd party library
which may (or may not) be platform specific. Try asking in either a graphics
newsgroup or a newsgroup for your particular platform.