Je was op zoek naar: imagegetpixelgray (Engels - Duits)

imagegetpixelgray returns the gray value of a pixel.
imagegetpixelgray liefert den grauton eines pixels oder eines images.

imagegetpixelgray imagegetpixelgray returns the gray value of a pixel.
imagegetpixelgray imagegetpixelgray liefert den grauton eines pixels oder eines images.

himg = imagecreate ( " c:/test.png" ); b = imageupdate ( himg ); if ( b == false ) error ( " image not found" ); g = imagegetpixelgray ( himg ); r = histc ( g , 0 : 255 ); plot ( r );
himg = imagecreate ( " c:/test.png" ); b = imageupdate ( himg ); if ( b == false ) error ( " image not found" ); g = imagegetpixelgray ( himg ); r = histc ( g , 0 : 255 ); plot ( r );