Description Usage Arguments Details Value See Also Examples
This function converts a 3-channels image (rgb or numeric) to a 1-channel image (binary, grayscale or numeric) by computing the average of the 3 channel values for each pixel. For instance, this function can be used to convert an rgb image to grayscale.
1 |
image |
A 3-channels vpImage object to convert to 1 channel. |
The vpImage object created by the ddd2d
function is not a
persistent object, but a pointer to a C++ object that cannot be saved for
reuse in a different session.
This function returns a vpImage object.
1 2 3 4 | filename <- system.file("sample_img/SampleVideo_1080x720_5mb.png", package = "videoplayR")
img <- readImg(filename)
imshow(img)
imshow(ddd2d(img))
|
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