Nothing
library(imagerExtra)
test_that("treat color image",
{
notim <- 1
im <- boats
gim <- grayscale(im)
gim2 <- imrep(gim, 2) %>% imappend(., "z")
im2 <- imrep(im, 2) %>% imappend(., "z")
expect_error(Grayscale(notim))
expect_error(Grayscale(gim))
expect_error(Grayscale(im2))
expect_error(GetHue(notim))
expect_error(GetHue(gim))
expect_error(GetHue(im2))
expect_error(RestoreHue(notim, im))
expect_error(RestoreHue(im, im))
expect_error(RestoreHue(gim2, im))
expect_error(RestoreHue(gim, notim))
expect_error(RestoreHue(gim, im2))
})
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