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eye-boof.core

as-seq
(as-seq img)
Returns the image's data as a Clojure sequence.

band!
(band! pimg n)
Returns a GrayU8 image as a color channel of a Planar image. IMPORTANT:
modifying the returned image has the side effect of modifying the given
image.
entropy-threshold
(entropy-threshold img min-val max-val)
GrayU8 -> int -> int -> int
Computes a threshold which maximizes the entropy between the foreground and
background regions.
height
(height img)
Returns the image's height.

load-image->gray-u8
(load-image->gray-u8 resource)
Returns a BoofCV GrayU8 image from a given resource, which can be a String
(file path), File, InputStream or URL. If the resource represents a color
image, the intensities of each channel are averaged together.
load-image->planar-u8
(load-image->planar-u8 resource)
Returns a BoofCV Planar<GrayU8> image from a given resource, which can be a
String (file path), File, InputStream or URL.
local-sauvola-threshold
(local-sauvola-threshold img radius down1? & [k])
GrayU8 -> int -> boolean -> GrayU8
Applies Sauvola thresholding algorithm to the input image. k is a tuning
parameter whose default value is 0.3.
Refs.: https://goo.gl/hhyGyc, https://goo.gl/1iRba2
local-square-threshold
(local-square-threshold img radius down1? & [scale])
GrayU8 -> int -> boolean -> GrayU8
Locally adaptive threshold computed using a square region centered on each
pixel. The threshold value is equal the average intensity of the square region
times the optional scale (default to 1.0).
Ref.: https://goo.gl/nQn90i
num-of-bands
(num-of-bands pimg)
Returns the number of color channels of a Planar image.

otsu-threshold
(otsu-threshold img min-val max-val)
GrayU8 -> int -> int -> int
Computes the variance based threshold using the Otsu's method.
resource->buff-image
(resource->buff-image r)
Returns a BufferedImage from a given resource.

save-image!
(save-image! img filepath)
Saves the given image representation.

threshold
(threshold img n down1?)
Global threshold. If down1? is true, pixel values <= n are set to 1.

threshold-f
(threshold-f img f down1?)
GrayU8 -> (GrayU8 -> int) -> boolean -> GrayU8
Global threshold with the value calculated from f(img). If down1? is true,
pixel values <= f(img) are set to 1.
width
(width img)
Returns the image's width.