程序包 org.meteoinfo.image

类 ImageUtil

java.lang.Object

org.meteoinfo.image.ImageUtil

public class ImageUtil
extends java.lang.Object

作者:

Yaqiang Wang

构造器概要

构造器

构造器	说明
ImageUtil()

方法概要

修饰符和类型	方法	说明
static Array	count(Array data, int size)	Count none-zero points with window size
static void	createGifAnimator(java.io.File[] infiles, java.io.File outfile, int delay)	Create gif animator file from image files
static void	createGifAnimator(java.util.List<java.lang.String> inImageFiles, java.lang.String outGifFile, int delay)	Create gif animator file from image files
static void	createGifAnimator(java.util.List<java.lang.String> inImageFiles, java.lang.String outGifFile, int delay, int repeat)	Create gif animator file from image files
static java.awt.image.BufferedImage	createImage(Array data)	Create image from RGB(A) data array
static Array	gaussianFilter(Array data, int size, double sigma)	Calculate a multi-dimensional gaussian filter.
static java.awt.image.BufferedImage	imageLoad(java.lang.String fileName)	Load image from image file
static Array	imageRead(java.awt.image.BufferedImage image)	Read RGB array data from image
static Array	imageRead(java.lang.String fileName)	Read RGB array data from image file
static void	imageSave(java.awt.image.BufferedImage image, java.lang.String fileName)	Save image into a file
static void	imageSave(Array data, java.lang.String fileName)	Save image into a file
static Array	maximumFilter(Array data, int size)	Calculate a multi-dimensional maximum filter.
static Array	mean(Array data, int size, boolean positive)	Calculate mean value with window size
static Array	minimumFilter(Array data, int size)	Calculate a multi-dimensional minimum filter.
static void	setDPI(javax.imageio.metadata.IIOMetadata metadata, float dpi)	Set DPI

从类继承的方法 java.lang.Object

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

构造器详细资料

ImageUtil

public ImageUtil()

方法详细资料

imageRead

public static Array imageRead(java.lang.String fileName)
                       throws java.io.IOException,
                              org.apache.commons.imaging.ImageReadException

Read RGB array data from image file

参数:

fileName - Image file name

返回:

RGB array data

抛出:

java.io.IOException

org.apache.commons.imaging.ImageReadException

imageRead

public static Array imageRead(java.awt.image.BufferedImage image)

Read RGB array data from image

参数:

image - Image

返回:

RGB array data

imageLoad

public static java.awt.image.BufferedImage imageLoad(java.lang.String fileName)
                                              throws java.io.IOException,
                                                     org.apache.commons.imaging.ImageReadException

Load image from image file

参数:

fileName - Image file name

返回:

Image

抛出:

java.io.IOException

org.apache.commons.imaging.ImageReadException

createImage

public static java.awt.image.BufferedImage createImage(Array data)

Create image from RGB(A) data array

参数:

data - RGB(A) data array

返回:

Image

imageSave

public static void imageSave(Array data,
                             java.lang.String fileName)
                      throws java.io.IOException,
                             org.apache.commons.imaging.ImageWriteException

Save image into a file

参数:

data - RGB(A) data array

fileName - Output image file name

抛出:

java.io.IOException

org.apache.commons.imaging.ImageWriteException

imageSave

public static void imageSave(java.awt.image.BufferedImage image,
                             java.lang.String fileName)
                      throws java.io.IOException,
                             org.apache.commons.imaging.ImageWriteException

Save image into a file

参数:

image - Image

fileName - Output image file name

抛出:

java.io.IOException

org.apache.commons.imaging.ImageWriteException

count

public static Array count(Array data,
                          int size)

Count none-zero points with window size

参数:

data - Input data

size - Window size

返回:

Count array

mean

public static Array mean(Array data,
                         int size,
                         boolean positive)

Calculate mean value with window size

参数:

data - Input data

size - Window size

positive - Only calculate the positive value or not.

返回:

Mean array

minimumFilter

public static Array minimumFilter(Array data,
                                  int size)
                           throws InvalidRangeException

Calculate a multi-dimensional minimum filter.

参数:

data - Input data

size - Window size

返回:

Minimum filter array

抛出:

InvalidRangeException

maximumFilter

public static Array maximumFilter(Array data,
                                  int size)
                           throws InvalidRangeException

Calculate a multi-dimensional maximum filter.

参数:

data - Input data

size - Window size

返回:

Maximum filter array

抛出:

InvalidRangeException

gaussianFilter

public static Array gaussianFilter(Array data,
                                   int size,
                                   double sigma)
                            throws InvalidRangeException

Calculate a multi-dimensional gaussian filter.

参数:

data - Input data

size - Window size

sigma - Sigma

返回:

Gaussian filter array

抛出:

InvalidRangeException

createGifAnimator

public static void createGifAnimator(java.util.List<java.lang.String> inImageFiles,
                                     java.lang.String outGifFile,
                                     int delay,
                                     int repeat)

Create gif animator file from image files

参数:

inImageFiles - Input image files

outGifFile - Output gif file

delay - Delay time in milliseconds between each frame

repeat - Repeat times, 0 means unlimite repeat

createGifAnimator

public static void createGifAnimator(java.util.List<java.lang.String> inImageFiles,
                                     java.lang.String outGifFile,
                                     int delay)

Create gif animator file from image files

参数:

inImageFiles - Input image files

outGifFile - Output gif file

delay - Delay time in milliseconds between each frame

createGifAnimator

public static void createGifAnimator(java.io.File[] infiles,
                                     java.io.File outfile,
                                     int delay)

Create gif animator file from image files

参数:

infiles - Input image files

outfile - Output gif file

delay - Delay time in milliseconds between each frame

setDPI

public static void setDPI(javax.imageio.metadata.IIOMetadata metadata,
                          float dpi)
                   throws javax.imageio.metadata.IIOInvalidTreeException

Set DPI

参数:

metadata - IIOMetadata

dpi - DPI

抛出:

javax.imageio.metadata.IIOInvalidTreeException