Class Scale

java.lang.Object
  |
  +--java.lang.Thread
        |
        +--Scale

public class Scale

extends java.lang.Thread

Scale is an algorithm to alter the size of an image

See Also:

code.iface.scale

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Scale()

Method Summary

int[]	getrect(int[] src, int src_width, int x, int y, int width, int height) Give an image of width src_width contained in int array src returns the rectangle with top left corner at x,y and with width width and height height contained in that image as an int array
int[]	grow_interpolate(int[] src, int orig_w, int orig_h, int scalefactor) Grows an image by a factor of scalefactor using the interpolate method
int[]	grow_replicate(int[] src, int orig_w, int orig_h, int scalefactor) Grows an image by a factor of scalefactor using the replicate method
int[]	shrink_average(int[] src, int orig_w, int orig_h, int scalefactor) Reduces an image by a factor of scalefactor using the average method
int[]	shrink_sample(int[] src, int orig_w, int orig_h, int scalefactor) Reduces an image by a factor of scalefactor using the sample method

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, run, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

Scale

public Scale()

Method Detail

getrect

public int[] getrect(int[] src,
                     int src_width,
                     int x,
                     int y,
                     int width,
                     int height)

Give an image of width src_width contained in int array src returns the rectangle with top left corner at x,y and with width width and height height contained in that image as an int array

Parameters:

src - The input image array

src_width - The width of the input image array

x - The x co-ordinate of the top left corner of the rectangle

y - The y co-ordinate of the top left corner of the rectangle

width - The width of the rectangle

height - The height of the rectangle

Returns:

The rectangle taken from the image

shrink_sample

public int[] shrink_sample(int[] src,
                           int orig_w,
                           int orig_h,
                           int scalefactor)

Reduces an image by a factor of scalefactor using the sample method

Parameters:

src - The input image array

orig_w - The width of the input image

orig_h - The height of the input image

scalefactor - The amount the image is to be shrunk

Returns:

The shrunken image array

shrink_average

public int[] shrink_average(int[] src,
                            int orig_w,
                            int orig_h,
                            int scalefactor)

Reduces an image by a factor of scalefactor using the average method

Parameters:

src - The input image array

orig_w - The width of the input image

orig_h - The height of the input image

scalefactor - The amount the image is to be shrunk

Returns:

The shrunken image array

grow_replicate

public int[] grow_replicate(int[] src,
                            int orig_w,
                            int orig_h,
                            int scalefactor)

Grows an image by a factor of scalefactor using the replicate method

Parameters:

src - The input image array

orig_w - The width of the input image

orig_h - The height of the input image

scalefactor - The amount the image is to be grown

Returns:

The grown image array

grow_interpolate

public int[] grow_interpolate(int[] src,
                              int orig_w,
                              int orig_h,
                              int scalefactor)

Grows an image by a factor of scalefactor using the interpolate method

Parameters:

src - The input image array

orig_w - The width of the input image

orig_h - The height of the input image

scalefactor - The amount the image is to be grown

Returns:

The grown image array