boofcv.alg.filter.binary

Class ThresholdImageOps

java.lang.Object

boofcv.alg.filter.binary.ThresholdImageOps

public class ThresholdImageOps
extends java.lang.Object

Operations for thresholding images and converting them into a binary image.

WARNING: Do not modify. Automatically generated by GenerateThresholdImageOps.

Constructor Summary

Constructors

Constructor and Description
ThresholdImageOps()

Method Summary

Modifier and Type	Method and Description
static GrayU8	localGaussian(GrayF32 input, GrayU8 output, int radius, float scale, boolean down, GrayF32 storage1, GrayF32 storage2) Thresholds the image using a locally adaptive threshold that is computed using a local square region centered on each pixel.
static GrayU8	localGaussian(GrayU8 input, GrayU8 output, int radius, float scale, boolean down, GrayU8 storage1, GrayU8 storage2) Thresholds the image using a locally adaptive threshold that is computed using a local square region centered on each pixel.
static GrayU8	localSquare(GrayF32 input, GrayU8 output, int radius, float scale, boolean down, GrayF32 storage1, GrayF32 storage2) Thresholds the image using a locally adaptive threshold that is computed using a local square region centered on each pixel.
static GrayU8	localSquare(GrayU8 input, GrayU8 output, int radius, float scale, boolean down, GrayU8 storage1, GrayU8 storage2) Thresholds the image using a locally adaptive threshold that is computed using a local square region centered on each pixel.
static GrayU8	threshold(GrayF32 input, GrayU8 output, float threshold, boolean down) Applies a global threshold across the whole image.
static GrayU8	threshold(GrayF64 input, GrayU8 output, double threshold, boolean down) Applies a global threshold across the whole image.
static GrayU8	threshold(GrayS16 input, GrayU8 output, int threshold, boolean down) Applies a global threshold across the whole image.
static GrayU8	threshold(GrayS32 input, GrayU8 output, int threshold, boolean down) Applies a global threshold across the whole image.
static GrayU8	threshold(GrayU16 input, GrayU8 output, int threshold, boolean down) Applies a global threshold across the whole image.
static GrayU8	threshold(GrayU8 input, GrayU8 output, int threshold, boolean down) Applies a global threshold across the whole image.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ThresholdImageOps

public ThresholdImageOps()

Method Detail

threshold

public static GrayU8 threshold(GrayF32 input,
                               GrayU8 output,
                               float threshold,
                               boolean down)

Applies a global threshold across the whole image. If 'down' is true, then pixels with values ≤ to 'threshold' are set to 1 and the others set to 0. If 'down' is false, then pixels with values > to 'threshold' are set to 1 and the others set to 0.

Parameters:

input - Input image. Not modified.

output - (Optional) Binary output image. If null a new image will be declared. Modified.

threshold - threshold value.

down - If true then the inequality ≤ is used, otherwise if false then > is used.

Returns:

Output image.

threshold

public static GrayU8 threshold(GrayF64 input,
                               GrayU8 output,
                               double threshold,
                               boolean down)

Applies a global threshold across the whole image. If 'down' is true, then pixels with values ≤ to 'threshold' are set to 1 and the others set to 0. If 'down' is false, then pixels with values > to 'threshold' are set to 1 and the others set to 0.

Parameters:

input - Input image. Not modified.

output - (Optional) Binary output image. If null a new image will be declared. Modified.

threshold - threshold value.

down - If true then the inequality ≤ is used, otherwise if false then > is used.

Returns:

Output image.

threshold

public static GrayU8 threshold(GrayU8 input,
                               GrayU8 output,
                               int threshold,
                               boolean down)

Applies a global threshold across the whole image. If 'down' is true, then pixels with values ≤ to 'threshold' are set to 1 and the others set to 0. If 'down' is false, then pixels with values > to 'threshold' are set to 1 and the others set to 0.

Parameters:

input - Input image. Not modified.

output - (Optional) Binary output image. If null a new image will be declared. Modified.

threshold - threshold value.

down - If true then the inequality ≤ is used, otherwise if false then > is used.

Returns:

Output image.

threshold

public static GrayU8 threshold(GrayS16 input,
                               GrayU8 output,
                               int threshold,
                               boolean down)

Applies a global threshold across the whole image. If 'down' is true, then pixels with values ≤ to 'threshold' are set to 1 and the others set to 0. If 'down' is false, then pixels with values > to 'threshold' are set to 1 and the others set to 0.

Parameters:

input - Input image. Not modified.

output - (Optional) Binary output image. If null a new image will be declared. Modified.

threshold - threshold value.

down - If true then the inequality ≤ is used, otherwise if false then > is used.

Returns:

Output image.

threshold

public static GrayU8 threshold(GrayU16 input,
                               GrayU8 output,
                               int threshold,
                               boolean down)

Applies a global threshold across the whole image. If 'down' is true, then pixels with values ≤ to 'threshold' are set to 1 and the others set to 0. If 'down' is false, then pixels with values > to 'threshold' are set to 1 and the others set to 0.

Parameters:

input - Input image. Not modified.

output - (Optional) Binary output image. If null a new image will be declared. Modified.

threshold - threshold value.

down - If true then the inequality ≤ is used, otherwise if false then > is used.

Returns:

Output image.

threshold

public static GrayU8 threshold(GrayS32 input,
                               GrayU8 output,
                               int threshold,
                               boolean down)

Applies a global threshold across the whole image. If 'down' is true, then pixels with values ≤ to 'threshold' are set to 1 and the others set to 0. If 'down' is false, then pixels with values > to 'threshold' are set to 1 and the others set to 0.

Parameters:

input - Input image. Not modified.

output - (Optional) Binary output image. If null a new image will be declared. Modified.

threshold - threshold value.

down - If true then the inequality ≤ is used, otherwise if false then > is used.

Returns:

Output image.

localSquare

public static GrayU8 localSquare(GrayU8 input,
                                 GrayU8 output,
                                 int radius,
                                 float scale,
                                 boolean down,
                                 GrayU8 storage1,
                                 GrayU8 storage2)

Thresholds the image using a locally adaptive threshold that is computed using a local square region centered on each pixel. The threshold is equal to the average value of the surrounding pixels times the scale. If down is true then b(x,y) = I(x,y) ≤ T(x,y) * scale ? 1 : 0. Otherwise b(x,y) = I(x,y) * scale > T(x,y) ? 0 : 1

Parameters:

input - Input image.

output - (optional) Output binary image. If null it will be declared internally.

radius - Radius of square region.

scale - Scale factor used to adjust threshold. Try 0.95

down - Should it threshold up or down.

storage1 - (Optional) Storage for intermediate step. If null will be declared internally.

storage2 - (Optional) Storage for intermediate step. If null will be declared internally.

Returns:

Thresholded image.

localGaussian

public static GrayU8 localGaussian(GrayU8 input,
                                   GrayU8 output,
                                   int radius,
                                   float scale,
                                   boolean down,
                                   GrayU8 storage1,
                                   GrayU8 storage2)

Thresholds the image using a locally adaptive threshold that is computed using a local square region centered on each pixel. The threshold is equal to the gaussian weighted sum of the surrounding pixels times the scale. If down is true then b(x,y) = I(x,y) ≤ T(x,y) * scale ? 1 : 0. Otherwise b(x,y) = I(x,y) * scale > T(x,y) ? 0 : 1

Parameters:

input - Input image.

output - (optional) Output binary image. If null it will be declared internally.

radius - Radius of square region.

scale - Scale factor used to adjust threshold. Try 0.95

down - Should it threshold up or down.

storage1 - (Optional) Storage for intermediate step. If null will be declared internally.

storage2 - (Optional) Storage for intermediate step. If null will be declared internally.

Returns:

Thresholded image.

localSquare

public static GrayU8 localSquare(GrayF32 input,
                                 GrayU8 output,
                                 int radius,
                                 float scale,
                                 boolean down,
                                 GrayF32 storage1,
                                 GrayF32 storage2)

Thresholds the image using a locally adaptive threshold that is computed using a local square region centered on each pixel. The threshold is equal to the average value of the surrounding pixels times the scale. If down is true then b(x,y) = I(x,y) ≤ T(x,y) * scale ? 1 : 0. Otherwise b(x,y) = I(x,y) * scale > T(x,y) ? 0 : 1

Parameters:

input - Input image.

output - (optional) Output binary image. If null it will be declared internally.

radius - Radius of square region.

scale - Scale factor used to adjust threshold. Try 0.95

down - Should it threshold up or down.

storage1 - (Optional) Storage for intermediate step. If null will be declared internally.

storage2 - (Optional) Storage for intermediate step. If null will be declared internally.

Returns:

Thresholded image.

localGaussian

public static GrayU8 localGaussian(GrayF32 input,
                                   GrayU8 output,
                                   int radius,
                                   float scale,
                                   boolean down,
                                   GrayF32 storage1,
                                   GrayF32 storage2)

Thresholds the image using a locally adaptive threshold that is computed using a local square region centered on each pixel. The threshold is equal to the gaussian weighted sum of the surrounding pixels times the scale. If down is true then b(x,y) = I(x,y) ≤ T(x,y) * scale ? 1 : 0. Otherwise b(x,y) = I(x,y) * scale > T(x,y) ? 0 : 1

Parameters:

input - Input image.

output - (optional) Output binary image. If null it will be declared internally.

radius - Radius of square region.

scale - Scale factor used to adjust threshold. Try 0.95

down - Should it threshold up or down.

storage1 - (Optional) Storage for intermediate step. If null will be declared internally.

storage2 - (Optional) Storage for intermediate step. If null will be declared internally.

Returns:

Thresholded image.