Package boofcv.alg.filter.basic

Class GrayImageOps

java.lang.Object

boofcv.alg.filter.basic.GrayImageOps

public class GrayImageOps
extends Object

Pixel-wise operations on gray-scale images.

Constructor Summary

Constructors

Constructor	Description
GrayImageOps()

Method Summary

Modifier and Type	Method	Description
static GrayF32	brighten(GrayF32 input, float beta, float max, GrayF32 output)	Brightens the image's intensity: Ox,y = Ix,y + beta
static GrayS16	brighten(GrayS16 input, int beta, int max, GrayS16 output)	Brightens the image's intensity: Ox,y = Ix,y + beta
static GrayU8	brighten(GrayU8 input, int beta, int max, GrayU8 output)	Brightens the image's intensity: Ox,y = Ix,y + beta
static GrayF32	invert(GrayF32 input, float max, GrayF32 output)	Inverts the image's intensity: Ox,y = max - Ix,y
static GrayS16	invert(GrayS16 input, int max, GrayS16 output)	Inverts the image's intensity: Ox,y = max - Ix,y
static GrayU8	invert(GrayU8 input, int max, GrayU8 output)	Inverts the image's intensity: Ox,y = max - Ix,y
static GrayF32	stretch(GrayF32 input, double gamma, float beta, float max, GrayF32 output)	Stretches the image's intensity: Ox,y = Ix,yγ + beta
static GrayS16	stretch(GrayS16 input, double gamma, int beta, int max, GrayS16 output)	Stretches the image's intensity: Ox,y = Ix,yγ + beta
static GrayU8	stretch(GrayU8 input, double gamma, int beta, int max, GrayU8 output)	Stretches the image's intensity: Ox,y = Ix,yγ + beta

Methods inherited from class java.lang.Object

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

Constructor Details

GrayImageOps

public GrayImageOps()

Method Details

invert

public static GrayU8 invert(GrayU8 input,
 int max,
 GrayU8 output)

Inverts the image's intensity:
O_x,y = max - I_x,y

Parameters:

input - Input image. Not modified.

output - If not null, the output image. If null a new image is declared and returned. Modified.

Returns:

Output image.

brighten

public static GrayU8 brighten(GrayU8 input,
 int beta,
 int max,
 GrayU8 output)

Brightens the image's intensity:
O_x,y = I_x,y + beta

The image's intensity is clamped at 0 and max;

Parameters:

input - Input image. Not modified.

beta - How much the image is brightened by.

output - If not null, the output image. If null a new image is declared and returned. Modified.

Returns:

Output image.

stretch

public static GrayU8 stretch(GrayU8 input,
 double gamma,
 int beta,
 int max,
 GrayU8 output)

Stretches the image's intensity:
O_x,y = I_x,yγ + beta

The image's intensity is clamped at 0 and max;

Parameters:

input - Input image. Not modified.

output - If not null, the output image. If null a new image is declared and returned. Modified.

Returns:

Output image.

invert

public static GrayS16 invert(GrayS16 input,
 int max,
 GrayS16 output)

Inverts the image's intensity:
O_x,y = max - I_x,y

Parameters:

input - Input image. Not modified.

output - If not null, the output image. If null a new image is declared and returned. Modified.

Returns:

Output image.

brighten

public static GrayS16 brighten(GrayS16 input,
 int beta,
 int max,
 GrayS16 output)

Brightens the image's intensity:
O_x,y = I_x,y + beta

The image's intensity is clamped at 0 and max;

Parameters:

input - Input image. Not modified.

beta - How much the image is brightened by.

output - If not null, the output image. If null a new image is declared and returned. Modified.

Returns:

Output image.

stretch

public static GrayS16 stretch(GrayS16 input,
 double gamma,
 int beta,
 int max,
 GrayS16 output)

Stretches the image's intensity:
O_x,y = I_x,yγ + beta

The image's intensity is clamped at 0 and max;

Parameters:

input - Input image. Not modified.

output - If not null, the output image. If null a new image is declared and returned. Modified.

Returns:

Output image.

invert

public static GrayF32 invert(GrayF32 input,
 float max,
 GrayF32 output)

Inverts the image's intensity:
O_x,y = max - I_x,y

Parameters:

input - Input image. Not modified.

output - If not null, the output image. If null a new image is declared and returned. Modified.

Returns:

Output image.

brighten

public static GrayF32 brighten(GrayF32 input,
 float beta,
 float max,
 GrayF32 output)

Brightens the image's intensity:
O_x,y = I_x,y + beta

The image's intensity is clamped at 0 and max;

Parameters:

input - Input image. Not modified.

beta - How much the image is brightened by.

output - If not null, the output image. If null a new image is declared and returned. Modified.

Returns:

Output image.

stretch

public static GrayF32 stretch(GrayF32 input,
 double gamma,
 float beta,
 float max,
 GrayF32 output)

Stretches the image's intensity:
O_x,y = I_x,yγ + beta

The image's intensity is clamped at 0 and max;

Parameters:

input - Input image. Not modified.

output - If not null, the output image. If null a new image is declared and returned. Modified.

Returns:

Output image.