Traitement d'image (pixels)

Salut les développeurs , svp j'ai besoin d'aide , un code source qui fait extraire une matrice de pixel pour une image et merci d'avance :roll:

Citation:

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Envoyé par http://download.oracle.com/javase/6/docs/api/java/awt/image/BufferedImage.html#getRGB(int, int, int, int, int[

, int, int)]
getRGB

Code:

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public int[] getRGB(int startX, int startY, int w, int h, int[] rgbArray, int offset, int scansize)

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Returns an array of integer pixels in the default RGB color model (TYPE_INT_ARGB) and default sRGB color space, from a portion of the image data. Color conversion takes place if the default model does not match the image ColorModel. There are only 8-bits of precision for each color component in the returned data when using this method. With a specified coordinate (x, y) in the image, the ARGB pixel can be accessed in this way:

Code:

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pixel = rgbArray[offset + (y-startY)*scansize + (x-startX)];

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An ArrayOutOfBoundsException may be thrown if the region is not in bounds. However, explicit bounds checking is not guaranteed.


Parameters:

• startX - the starting X coordinate
• startY - the starting Y coordinate
• w - width of region
• h - height of region
• rgbArray - if not null, the rgb pixels are written here
• offset - offset into the rgbArray
• scansize - scanline stride for the rgbArray

Returns:

• array of RGB pixels.

See Also:

• setRGB(int, int, int), setRGB(int, int, int, int, int[], int, int)

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