程序包 org.meteoinfo.image

类 ImageUtil

java.lang.Object

org.meteoinfo.image.ImageUtil

public class ImageUtil
extends 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 org.meteoinfo.ndarray.Array	count(org.meteoinfo.ndarray.Array data, int size)	Count none-zero points with window size
static void	createGifAnimator(File[] infiles, File outfile, int delay)	Create gif animator file from image files
static void	createGifAnimator(List<String> inImageFiles, String outGifFile, int delay)	Create gif animator file from image files
static void	createGifAnimator(List<String> inImageFiles, String outGifFile, int delay, int repeat)	Create gif animator file from image files
static BufferedImage	createImage(org.meteoinfo.ndarray.Array data)	Create image from RGB(A) data array
static org.meteoinfo.ndarray.Array	gaussianFilter(org.meteoinfo.ndarray.Array data, int size, double sigma)	Calculate a multi-dimensional gaussian filter.
static org.apache.commons.imaging.ImageFormats	getImageFormat(String fileName)	Get image format
static BufferedImage	imageLoad(String fileName)	Load image from image file
static org.meteoinfo.ndarray.Array	imageRead(BufferedImage image)	Read RGB array data from image
static org.meteoinfo.ndarray.Array	imageRead(String fileName)	Read RGB array data from image file
static void	imageSave(BufferedImage image, String fileName)	Save image into a file
static void	imageSave(BufferedImage image, String fileName, int dpi)	Save image into a file
static void	imageSave(org.meteoinfo.ndarray.Array data, String fileName)	Save image into a file
static org.meteoinfo.ndarray.Array	maximumFilter(org.meteoinfo.ndarray.Array data, int size)	Calculate a multi-dimensional maximum filter.
static org.meteoinfo.ndarray.Array	mean(org.meteoinfo.ndarray.Array data, int size, boolean positive)	Calculate mean value with window size
static org.meteoinfo.ndarray.Array	minimumFilter(org.meteoinfo.ndarray.Array data, int size)	Calculate a multi-dimensional minimum filter.
static void	setDPI(IIOMetadata metadata, float dpi)	Set DPI
static BufferedImage	toCompatibleImage(BufferedImage image)	Convert a BufferedImage to compatible image

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 org.meteoinfo.ndarray.Array imageRead(String fileName)
                                             throws 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:

IOException

org.apache.commons.imaging.ImageReadException

imageRead

public static org.meteoinfo.ndarray.Array imageRead(BufferedImage image)

Read RGB array data from image

参数:

image - Image

返回:

RGB array data

imageLoad

public static BufferedImage imageLoad(String fileName)
                               throws IOException,
                                      org.apache.commons.imaging.ImageReadException

Load image from image file

参数:

fileName - Image file name

返回:

Image

抛出:

IOException

org.apache.commons.imaging.ImageReadException

createImage

public static BufferedImage createImage(org.meteoinfo.ndarray.Array data)

Create image from RGB(A) data array

参数:

data - RGB(A) data array

返回:

Image

imageSave

public static void imageSave(org.meteoinfo.ndarray.Array data,
                             String fileName)
                      throws 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:

IOException

org.apache.commons.imaging.ImageWriteException

imageSave

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

Save image into a file

参数:

image - Image

fileName - Output image file name

抛出:

IOException

org.apache.commons.imaging.ImageWriteException

imageSave

public static void imageSave(BufferedImage image,
                             String fileName,
                             int dpi)
                      throws IOException,
                             org.apache.commons.imaging.ImageWriteException

Save image into a file

参数:

image - Image

fileName - Output image file name

抛出:

IOException

org.apache.commons.imaging.ImageWriteException

getImageFormat

public static org.apache.commons.imaging.ImageFormats getImageFormat(String fileName)

Get image format

参数:

fileName - The file name

返回:

Image format

count

public static org.meteoinfo.ndarray.Array count(org.meteoinfo.ndarray.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 org.meteoinfo.ndarray.Array mean(org.meteoinfo.ndarray.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 org.meteoinfo.ndarray.Array minimumFilter(org.meteoinfo.ndarray.Array data,
                                                        int size)
                                                 throws org.meteoinfo.ndarray.InvalidRangeException

Calculate a multi-dimensional minimum filter.

参数:

data - Input data

size - Window size

返回:

Minimum filter array

抛出:

org.meteoinfo.ndarray.InvalidRangeException

maximumFilter

public static org.meteoinfo.ndarray.Array maximumFilter(org.meteoinfo.ndarray.Array data,
                                                        int size)
                                                 throws org.meteoinfo.ndarray.InvalidRangeException

Calculate a multi-dimensional maximum filter.

参数:

data - Input data

size - Window size

返回:

Maximum filter array

抛出:

org.meteoinfo.ndarray.InvalidRangeException

gaussianFilter

public static org.meteoinfo.ndarray.Array gaussianFilter(org.meteoinfo.ndarray.Array data,
                                                         int size,
                                                         double sigma)
                                                  throws org.meteoinfo.ndarray.InvalidRangeException

Calculate a multi-dimensional gaussian filter.

参数:

data - Input data

size - Window size

sigma - Sigma

返回:

Gaussian filter array

抛出:

org.meteoinfo.ndarray.InvalidRangeException

createGifAnimator

public static void createGifAnimator(List<String> inImageFiles,
                                     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(List<String> inImageFiles,
                                     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(File[] infiles,
                                     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(IIOMetadata metadata,
                          float dpi)
                   throws IIOInvalidTreeException

Set DPI

参数:

metadata - IIOMetadata

dpi - DPI

抛出:

IIOInvalidTreeException

toCompatibleImage

public static BufferedImage toCompatibleImage(BufferedImage image)

Convert a BufferedImage to compatible image

参数:

image - Origin image

返回:

Compatible image