Access a channel of a multi-channel image.
The operator access_channel accesses a channel of the (multi-channel) input image. The result is a one-channel image. The definition domain of the input is adopted. The channels are numbered from 1 to n. The number of channels can be determined via the operator count_channels.
MultiChannelImage (input_object) |
multichannel-image -> object |
Multi-channel image. |
Image (output_object) |
singlechannelimage -> object |
One channel of MultiChannelImage. |
Channel (input_control) |
channel -> integer |
Index of channel to be accessed. | |
Default value: 1 | |
Suggested values: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 | |
Range of values: 1 <= Channel |
read_image(&Color,"patras"); /* Farbbild einlesen */ access_channel(Color,&Red,1); /* Rotkanal extrahieren */ disp_image(Red);
decompose2, decompose3, decompose4, decompose5