|
|||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||||
java.lang.Objectorg.pdfbox.pdmodel.graphics.predictor.PredictorAlgorithm
org.pdfbox.pdmodel.graphics.predictor.Uptimum
In an Uptimum encoded image, each line takes up width*bpp+1 bytes. The first byte holds a number that signifies which algorithm encoded the line.
| Constructor Summary | |
Uptimum()
|
|
| Method Summary | |
void |
checkBufsiz(byte[] filtered,
byte[] raw)
check that buffer sizes matches width,height,bpp. This implementation is used by most of the filters, but not Uptimum. |
void |
decode(byte[] src,
byte[] dest)
decode a byte array full of image data using the filter that this object implements. |
void |
decodeLine(byte[] src,
byte[] dest,
int srcDy,
int srcOffset,
int destDy,
int destOffset)
decode line of pixel data in src from src_offset and width*bpp bytes forward, put the decoded bytes into dest. |
void |
encode(byte[] src,
byte[] dest)
encode a byte array full of image data using the filter that this object implements. |
void |
encodeLine(byte[] src,
byte[] dest,
int srcDy,
int srcOffset,
int destDy,
int destOffset)
encode line of pixel data in src from srcOffset and width*bpp bytes forward, put the decoded bytes into dest. |
void |
setBpp(int bpp)
|
void |
setHeight(int height)
|
void |
setWidth(int width)
|
| Methods inherited from class org.pdfbox.pdmodel.graphics.predictor.PredictorAlgorithm |
aboveLeftPixel, abovePixel, getBpp, getFilter, getHeight, getWidth, leftPixel, main |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public Uptimum()
| Method Detail |
public void checkBufsiz(byte[] filtered,
byte[] raw)
checkBufsiz in class PredictorAlgorithmfiltered - The source buffer.raw - The destination buffer.
public void encodeLine(byte[] src,
byte[] dest,
int srcDy,
int srcOffset,
int destDy,
int destOffset)
encodeLine in class PredictorAlgorithmsrc - raw image datadest - encoded datasrcDy - byte offset between linessrcOffset - beginning of line datadestDy - byte offset between linesdestOffset - beginning of line data
public void decodeLine(byte[] src,
byte[] dest,
int srcDy,
int srcOffset,
int destDy,
int destOffset)
decodeLine in class PredictorAlgorithmsrc - encoded image datadest - raw datasrcDy - byte offset between linessrcOffset - beginning of line datadestDy - byte offset between linesdestOffset - beginning of line data
public void encode(byte[] src,
byte[] dest)
encode in class PredictorAlgorithmsrc - bufferdest - bufferpublic void setBpp(int bpp)
setBpp in class PredictorAlgorithmbpp - The bpp to set.public void setHeight(int height)
setHeight in class PredictorAlgorithmheight - The height to set.public void setWidth(int width)
setWidth in class PredictorAlgorithmwidth - The width to set.
public void decode(byte[] src,
byte[] dest)
decode in class PredictorAlgorithmsrc - bufferdest - buffer
|
|||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||||