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java.lang.Objectjjil.core.PipelineStage
jjil.algorithm.GrayCrop
public class GrayCrop
Pipeline stage crops a Gray8Image to a given rectangular cropping window.
Constructor Summary | |
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GrayCrop(int x,
int y,
int width,
int height)
Creates a new instance of GrayCrop. |
Method Summary | |
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int |
getHeight()
Gets the cropping window height |
int |
getLeft()
Gets the cropping window left edge |
int |
getTop()
Gets the cropping window top |
int |
getWidth()
Gets the cropping window width |
void |
push(Image image)
Crops the input gray image to the cropping window that was specified in the constructor. |
void |
setWindow(int x,
int y,
int width,
int height)
Change the cropping window. |
java.lang.String |
toString()
Return a string describing the cropping operation. |
Methods inherited from class jjil.core.PipelineStage |
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getFront, isEmpty |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public GrayCrop(int x, int y, int width, int height) throws Error
x
- left edge of cropping windowy
- top edge of cropping windowwidth
- width of cropping windowheight
- height of cropping window
Error
- if the top left corner of the
window is negative, or the window area is non-positive.Method Detail |
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public void push(Image image) throws Error
push
in class PipelineStage
image
- the input image.
Error
- if the cropping window
extends outside the input image, or the input image
is not a Gray8Image.public int getHeight()
public int getLeft()
public int getTop()
public int getWidth()
public void setWindow(int x, int y, int width, int height) throws Error
x
- left edge of cropping windowy
- top edge of cropping windowwidth
- width of cropping windowheight
- height of cropping window
Error
- if the top left corner of the
window is negative, or the window area is non-positive.public java.lang.String toString()
toString
in class java.lang.Object
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