Concatenate images side-by-side or top-to-bottom

Combines a list of images using cv::hconcat or cv::vconcat. All images must share the same depth, colorspace, and nchan. For horizontal concatenation all must have the same nrow; for vertical, the same ncol.

Usage

concatenate(imgs, axis = "h")

Arguments

imgs

A list of at least 2 Image objects.

axis

"h" or "horizontal" for side-by-side; "v" or "vertical" for top-to-bottom. Default "h".

Value

A new Image with the colorspace of the first input image.

Examples

# \donttest{
a <- Image$zeros(3L, 4L, 1L, "CV_8U", "GRAY")
b <- Image$fill(128, 3L, 3L, 1L, "CV_8U", "GRAY")
concatenate(list(a, b), "h")$plot()

# }