Extracts the specified channel from a multichannel image.
Function
CuviStatus getChannel(const CuviImage& src,
CuviImage& dst,
const Cuvi32s channel,
const CuviStream& stream = CuviStream());
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Parameters
| Name
|
Type
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Description
|
| src
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const CuviImage&
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Input Image
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| dst
|
CuviImage&
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Destination Image
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| channel
|
Cuvi32s
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Channel number from 0 to (src.channels() - 1)
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| stream
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const CuviStream&
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GPU stream ID for execution
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Image Type Support
| Input
|
Output
|
| 8uC3
|
8uC1
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| 8uC4
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8uC1
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| 16uC3
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16uC1
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| 16uC4
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16uC1
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| 32fC3
|
32fC1
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| 32fC4
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32fC1
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Example
//Creating GPU images
CuviImage input = cuvi:io::loadImage(path), output;
//Get first channel of the input image
cuvi::dataExchange::getChannel(input, output, 0);
//The same can be achieved by using the channel fetch operator
output = input[0];
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