org.openimaj.image.processing.resize

Class FixedResizeProcessor

java.lang.Object

org.openimaj.image.processing.resize.FixedResizeProcessor

All Implemented Interfaces:

ImageProcessor<FImage>, Processor<FImage>, SinglebandImageProcessor<Float,FImage>

public class FixedResizeProcessor
extends Object
implements SinglebandImageProcessor<Float,FImage>

A copy of the ResizeProcessor which speeds up the resize operation between images of a given size to another fixed size by caching the contribution calculations

Author:

Sina Samangooei (ss@ecs.soton.ac.uk)

Nested Class Summary

Nested classes/interfaces inherited from interface org.openimaj.image.processor.SinglebandImageProcessor

SinglebandImageProcessor.Processable<T,S extends Image<T,S>,I extends Image<?,I>>

Field Summary

Fields

Modifier and Type	Field and Description
static ResizeFilterFunction	DEFAULT_FILTER The default TriangleFilter (bilinear-interpolation filter) used by instances of ResizeProcessor, unless otherwise specified.

Constructor Summary

Constructors

Constructor and Description
FixedResizeProcessor(FImage image, int newX, int newY)
FixedResizeProcessor(float srcX, float srcY, float newX, float newY) Construct a fixed resize processor that will rescale the image to the given width and height with the default filter function.
FixedResizeProcessor(float srcX, float srcY, float newX, float newY, ResizeFilterFunction ff) Construct a fixed resize processor that will rescale the image to the given width and height with the given filter function.

Method Summary

Modifier and Type	Method and Description
void	processImage(FImage in) Process an image.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_FILTER

public static final ResizeFilterFunction DEFAULT_FILTER

The default TriangleFilter (bilinear-interpolation filter) used by instances of ResizeProcessor, unless otherwise specified.

Constructor Detail

FixedResizeProcessor

public FixedResizeProcessor(float srcX,
                            float srcY,
                            float newX,
                            float newY,
                            ResizeFilterFunction ff)

Construct a fixed resize processor that will rescale the image to the given width and height with the given filter function. By default, this method will retain the image's aspect ratio.

Parameters:

srcX - The expected width of input images

srcY - The expected with of output images

newX - The new width of the image.

newY - The new height of the image.

ff - The filter function to use.

FixedResizeProcessor

public FixedResizeProcessor(float srcX,
                            float srcY,
                            float newX,
                            float newY)

Construct a fixed resize processor that will rescale the image to the given width and height with the default filter function. By default, this method will retain the image's aspect ratio which means that the resulting image may have dimensions less than those specified here.

Parameters:

srcX - The expected width of input images

srcY - The expected height of input images

newX - The new width of the image.

newY - The new height of the image.

FixedResizeProcessor

public FixedResizeProcessor(FImage image,
                            int newX,
                            int newY)

Parameters:

image - The expected width and height of input images

newX - The new width of the image

newY - The new height of the image

Method Detail

processImage

public void processImage(FImage in)

Process an image. Implementing classes must alter the image passed in-place or assign the output to the input using Image.internalAssign(Image).

Specified by:

processImage in interface ImageProcessor<FImage>

Parameters:

in - The image to process in place.

See Also:

ImageProcessor.processImage(org.openimaj.image.Image)