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Pull Request - William Chan - Image Transformation #48

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Pull Request - William Chan - Image Transformation #48

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59 changes: 59 additions & 0 deletions R/31415.R
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library(magick)

# function receives image and writes ten transformations
# of the image into the same location as the image
ten.trans <- function(pic, pic.path, pic.name, pic.ext) {

# scales image to size 200x200
t1 <- image_scale(pic, "200x200")

# adds gaussian noise to image
t2 <- image_noise(pic, noisetype="gaussian")

# adds multiplicative gaussian noise to image
t3 <- image_noise(pic, noisetype="multiplicative gaussian")

# adds impulse noise to image
t4 <- image_noise(pic, noisetype="impulse")

# adds laplacian noise to image
t5 <- image_noise(pic, noisetype="laplacian")

# adds poisson noise to image
t6 <- image_noise(pic, noisetype="poisson")

# returns upside-down mirrored image
t7 <- image_flip(pic)

# rotates image 90 degrees
t8 <- image_rotate(pic, 90)

# rotates image 314.15 degrees
t9 <- image_rotate(pic, 314.15)

# returns negative of image
t10 <- image_negate(pic)

image_write(image=t1, path=paste(pic.path, pic.name, "t1", pic.ext, sep=""))
image_write(image=t2, path=paste(pic.path, pic.name, "t2", pic.ext, sep=""))
image_write(image=t3, path=paste(pic.path, pic.name, "t3", pic.ext, sep=""))
image_write(image=t4, path=paste(pic.path, pic.name, "t4", pic.ext, sep=""))
image_write(image=t5, path=paste(pic.path, pic.name, "t5", pic.ext, sep=""))
image_write(image=t6, path=paste(pic.path, pic.name, "t6", pic.ext, sep=""))
image_write(image=t7, path=paste(pic.path, pic.name, "t7", pic.ext, sep=""))
image_write(image=t8, path=paste(pic.path, pic.name, "t8", pic.ext, sep=""))
image_write(image=t9, path=paste(pic.path, pic.name, "t9", pic.ext, sep=""))
image_write(image=t10, path=paste(pic.path, pic.name, "t10", pic.ext, sep=""))

}

pic.path <- "E:/DATA 622/Week 10/"

pic.name <- "Miguel_Cotto_0001"

pic.ext <- ".jpg"

pic <- image_read(path=paste(pic.path, pic.name, pic.ext, sep=""))

ten.trans(pic, pic.path, pic.name, pic.ext)