下面列出了怎么用sun.awt.image.codec.JPEGParam的API类实例代码及写法,或者点击链接到github查看源代码。
/**
* This is a factory method for creating JPEGEncodeParam objects.
* It is the users responsiblity to match the colorID with the
* data contained in the Raster. Failure to do so may lead to
* either poor compression or poor image quality. If you don't
* understand much about JPEG it is strongly recommended that you
* stick to the BufferedImage interface.
* @param ras Raster that is similar to those to be encoded later.
* @param colorID the COLOR_ID for the encoded data. This should
* match the data in the raster.
*/
public static JPEGEncodeParam getDefaultJPEGEncodeParam(Raster ras,
int colorID)
{
JPEGParam ret = new JPEGParam(colorID, ras.getNumBands());
ret.setWidth(ras.getWidth());
ret.setHeight(ras.getHeight());
return ret;
}
/**
* This is a factory method for creating JPEGEncodeParam objects. It
* is the users responsiblity to match the colorID with the given
* number of bands, which should match the data being encoded.
* Failure to do so may lead to poor compression and/or poor image
* quality. If you don't understand much about JPEG it is strongly
* recommended that you stick to the BufferedImage interface.
*
* This can also be used as a factory for a JPEGDecodeParam object.
* However this usage is extremely rare, as one needs to be decoding
* abbreviated JPEG streams where the JPEG tables are coming from
* some source other than a JPEG tables only stream.
*
* @param numBands the number of bands that will be encoded (max of four).
* @param colorID the COLOR_ID for the encoded data. This is used to
* set reasonable defaults in the parameter object. This must match
* the number of bands given.
*/
public static JPEGEncodeParam getDefaultJPEGEncodeParam(int numBands,
int colorID)
throws ImageFormatException
{
return new JPEGParam(colorID, numBands);
}
/**
* This is a factory method for creating JPEGEncodeParam objects.
* It is the users responsiblity to match the colorID with the
* data contained in the Raster. Failure to do so may lead to
* either poor compression or poor image quality. If you don't
* understand much about JPEG it is strongly recommended that you
* stick to the BufferedImage interface.
* @param ras Raster that is similar to those to be encoded later.
* @param colorID the COLOR_ID for the encoded data. This should
* match the data in the raster.
*/
public static JPEGEncodeParam getDefaultJPEGEncodeParam(Raster ras,
int colorID)
{
JPEGParam ret = new JPEGParam(colorID, ras.getNumBands());
ret.setWidth(ras.getWidth());
ret.setHeight(ras.getHeight());
return ret;
}
/**
* This is a factory method for creating JPEGEncodeParam objects. It
* is the users responsiblity to match the colorID with the given
* number of bands, which should match the data being encoded.
* Failure to do so may lead to poor compression and/or poor image
* quality. If you don't understand much about JPEG it is strongly
* recommended that you stick to the BufferedImage interface.
*
* This can also be used as a factory for a JPEGDecodeParam object.
* However this usage is extremely rare, as one needs to be decoding
* abbreviated JPEG streams where the JPEG tables are coming from
* some source other than a JPEG tables only stream.
*
* @param numBands the number of bands that will be encoded (max of four).
* @param colorID the COLOR_ID for the encoded data. This is used to
* set reasonable defaults in the parameter object. This must match
* the number of bands given.
*/
public static JPEGEncodeParam getDefaultJPEGEncodeParam(int numBands,
int colorID)
throws ImageFormatException
{
return new JPEGParam(colorID, numBands);
}
/**
* This is a factory method for creating JPEGEncodeParam objects.
* It is the users responsiblity to match the colorID with the
* data contained in the Raster. Failure to do so may lead to
* either poor compression or poor image quality. If you don't
* understand much about JPEG it is strongly recommended that you
* stick to the BufferedImage interface.
* @param ras Raster that is similar to those to be encoded later.
* @param colorID the COLOR_ID for the encoded data. This should
* match the data in the raster.
*/
public static JPEGEncodeParam getDefaultJPEGEncodeParam(Raster ras,
int colorID)
{
JPEGParam ret = new JPEGParam(colorID, ras.getNumBands());
ret.setWidth(ras.getWidth());
ret.setHeight(ras.getHeight());
return ret;
}
/**
* This is a factory method for creating JPEGEncodeParam objects. It
* is the users responsiblity to match the colorID with the given
* number of bands, which should match the data being encoded.
* Failure to do so may lead to poor compression and/or poor image
* quality. If you don't understand much about JPEG it is strongly
* recommended that you stick to the BufferedImage interface.
*
* This can also be used as a factory for a JPEGDecodeParam object.
* However this usage is extremely rare, as one needs to be decoding
* abbreviated JPEG streams where the JPEG tables are coming from
* some source other than a JPEG tables only stream.
*
* @param numBands the number of bands that will be encoded (max of four).
* @param colorID the COLOR_ID for the encoded data. This is used to
* set reasonable defaults in the parameter object. This must match
* the number of bands given.
*/
public static JPEGEncodeParam getDefaultJPEGEncodeParam(int numBands,
int colorID)
throws ImageFormatException
{
return new JPEGParam(colorID, numBands);
}
/**
* This is a factory method for creating JPEGEncodeParam objects.
* The returned object should do a credible job of encoding the
* given BufferedImage.
* @param bi A BufferedImage that is similar to the BufferedImage(s)
* that will encoded using the returned JPEGEncodeParam object.
*/
public static JPEGEncodeParam getDefaultJPEGEncodeParam(BufferedImage bi)
{
int colorID = JPEGParam.getDefaultColorId(bi.getColorModel());
return getDefaultJPEGEncodeParam(bi.getRaster(), colorID);
}
/**
* This is a factory method for creating a JPEGEncodeParam from a
* JPEGDecodeParam. This will return a new JPEGEncodeParam object
* that is initialized from the JPEGDecodeParam object. All major
* pieces of information will be initialized from the DecodeParam
* (Markers, Tables, mappings).
* @param jdp The JPEGDecodeParam object to copy.
*/
public static JPEGEncodeParam getDefaultJPEGEncodeParam(JPEGDecodeParam jdp)
throws ImageFormatException {
return new JPEGParam(jdp);
}
/**
* This is a factory method for creating JPEGEncodeParam objects.
* The returned object should do a credible job of encoding the
* given BufferedImage.
* @param bi A BufferedImage that is similar to the BufferedImage(s)
* that will encoded using the returned JPEGEncodeParam object.
*/
public static JPEGEncodeParam getDefaultJPEGEncodeParam(BufferedImage bi)
{
int colorID = JPEGParam.getDefaultColorId(bi.getColorModel());
return getDefaultJPEGEncodeParam(bi.getRaster(), colorID);
}
/**
* This is a factory method for creating a JPEGEncodeParam from a
* JPEGDecodeParam. This will return a new JPEGEncodeParam object
* that is initialized from the JPEGDecodeParam object. All major
* pieces of information will be initialized from the DecodeParam
* (Markers, Tables, mappings).
* @param jdp The JPEGDecodeParam object to copy.
*/
public static JPEGEncodeParam getDefaultJPEGEncodeParam(JPEGDecodeParam jdp)
throws ImageFormatException {
return new JPEGParam(jdp);
}
/**
* This is a factory method for creating JPEGEncodeParam objects.
* The returned object should do a credible job of encoding the
* given BufferedImage.
* @param bi A BufferedImage that is similar to the BufferedImage(s)
* that will encoded using the returned JPEGEncodeParam object.
*/
public static JPEGEncodeParam getDefaultJPEGEncodeParam(BufferedImage bi)
{
int colorID = JPEGParam.getDefaultColorId(bi.getColorModel());
return getDefaultJPEGEncodeParam(bi.getRaster(), colorID);
}
/**
* This is a factory method for creating a JPEGEncodeParam from a
* JPEGDecodeParam. This will return a new JPEGEncodeParam object
* that is initialized from the JPEGDecodeParam object. All major
* pieces of information will be initialized from the DecodeParam
* (Markers, Tables, mappings).
* @param jdp The JPEGDecodeParam object to copy.
*/
public static JPEGEncodeParam getDefaultJPEGEncodeParam(JPEGDecodeParam jdp)
throws ImageFormatException {
return new JPEGParam(jdp);
}