/**
* Returns a tile for reading.
*
* @param tileX The X index of the tile.
* @param tileY The Y index of the tile.
* @return The tile as a <code>Raster</code>.
*/
public Raster computeTile(int tileX, int tileY) {
// STATISTICAL ELABORATIONS
// selection of the format tags
RasterFormatTag[] formatTags = getFormatTags();
// Selection of the RasterAccessor parameters
Raster source = getSourceImage(0).getTile(tileX, tileY);
// Control if the Period is bigger than the tile dimension, in that case, the
// statistics are not updated
if (xPeriod > getTileWidth() || yPeriod > getTileHeight()) {
return source;
}
Rectangle srcRect = getSourceImage(0).getBounds().intersection(source.getBounds());
// creation of the RasterAccessor
RasterAccessor src =
new RasterAccessor(source, srcRect, formatTags[0], getSourceImage(0).getColorModel());
// ROI calculations if roiAccessor is used
RasterAccessor roi = null;
RandomIter roiIter = null;
if (useROIAccessor) {
// Note that the getExtendedData() method is not called because the input images are padded.
// For each image there is a check if the rectangle is contained inside the source image;
// if this not happen, the data is taken from the padded image.
Raster roiRaster = null;
if (srcROIImage.getBounds().contains(srcRect)) {
roiRaster = srcROIImage.getData(srcRect);
} else {
roiRaster = srcROIImgExt.getData(srcRect);
}
// creation of the rasterAccessor
roi =
new RasterAccessor(
roiRaster,
srcRect,
RasterAccessor.findCompatibleTags(new RenderedImage[] {srcROIImage}, srcROIImage)[0],
srcROIImage.getColorModel());
} else if (hasROI) {
roiIter = RandomIterFactory.create(srcROIImage, srcROIImage.getBounds(), true, true);
}
// Computation of the statistics
switch (src.getDataType()) {
case DataBuffer.TYPE_BYTE:
byteLoop(src, srcRect, roi, stats, roiIter);
break;
case DataBuffer.TYPE_USHORT:
ushortLoop(src, srcRect, roi, stats, roiIter);
break;
case DataBuffer.TYPE_SHORT:
shortLoop(src, srcRect, roi, stats, roiIter);
break;
case DataBuffer.TYPE_INT:
intLoop(src, srcRect, roi, stats, roiIter);
break;
case DataBuffer.TYPE_FLOAT:
floatLoop(src, srcRect, roi, stats, roiIter);
break;
case DataBuffer.TYPE_DOUBLE:
doubleLoop(src, srcRect, roi, stats, roiIter);
break;
}
return source;
}
public TiledImage cutFrame(
RenderedImage image,
double resdpi,
int frameWidthPix,
int frameHeightPix,
boolean reverseImage,
int frameNum,
double scaleMult,
boolean rescale,
boolean correctrotation) {
noCut = false;
if (farEdge == null || farEdge.stdDev > worstEdgeStdDevAllowed) {
System.out.println(
"WARNING: far film edge for frame "
+ frameNum
+ " has a stdDev of "
+ (farEdge == null ? "null" : Double.toString(farEdge.stdDev))
+ " and will not be used.");
if (sprocketEdge == null || sprocketEdge.stdDev > worstEdgeStdDevAllowed) {
System.out.println(
"WARNING: near film edge for frame "
+ frameNum
+ " has a stdDev of "
+ (sprocketEdge == null ? "null" : Double.toString(sprocketEdge.stdDev))
+ " and will not be used.");
noCut = true;
return null;
} else
preMapSetupUsingSprocketEdge(
frameWidthPix, frameHeightPix, scaleMult, reverseImage, rescale, correctrotation);
} else
preMapSetupUsingFarEdge(
frameWidthPix, frameHeightPix, scaleMult, reverseImage, rescale, correctrotation);
outOfBounds = false;
// double resdpmm = resdpi / FilmSpec.mmPerInch;
// double [] spec = FilmSpec.filmModel(filmType);
TiledImage ret =
new TiledImage(
0,
0,
frameWidthPix,
frameHeightPix,
0,
0,
image.getSampleModel().createCompatibleSampleModel(frameWidthPix, frameHeightPix),
image.getColorModel());
RenderedImage[] srcs = new RenderedImage[1];
srcs[0] = image;
RasterFormatTag[] tags = RasterAccessor.findCompatibleTags(srcs, ret);
RasterFormatTag srctag = tags[0];
RasterFormatTag dsttag = tags[1];
Raster srcraster = image.getData();
RasterAccessor srcra =
new RasterAccessor(srcraster, srcraster.getBounds(), srctag, image.getColorModel());
Raster dstraster = ret.getWritableTile(0, 0);
RasterAccessor dstra =
new RasterAccessor(dstraster, dstraster.getBounds(), dsttag, ret.getColorModel());
int srcwidth = srcra.getWidth();
int srcheight = srcra.getHeight();
// int srcbandcount = srcra.getNumBands();
byte bandedsrc[][] = srcra.getByteDataArrays();
int srcBandOffsets[] = srcra.getBandOffsets();
int srcPixelStride = srcra.getPixelStride();
int srcScanLineStride = srcra.getScanlineStride();
int dstwidth = dstra.getWidth();
int dstheight = dstra.getHeight();
int dstbandcount = dstra.getNumBands();
byte bandeddst[][] = dstra.getByteDataArrays();
int dstBandOffsets[] = dstra.getBandOffsets();
int dstPixelStride = dstra.getPixelStride();
int dstScanLineStride = dstra.getScanlineStride();
for (int band = 0; band < dstbandcount; band++) {
byte dst[] = bandeddst[band];
byte src[] = bandedsrc[band];
int srcBegCurBand = srcBandOffsets[band];
int dstBegCurRow = dstBandOffsets[band];
for (int dstRow = 0; dstRow < dstheight; dstRow++) {
int dstpos = dstBegCurRow;
for (int dstCol = 0; dstCol < dstwidth; dstCol++) {
Point srclocation = map(dstRow, dstCol, frameWidthPix, frameHeightPix, reverseImage);
if (leftmostCol > srclocation.x) leftmostCol = srclocation.x;
if (rightmostCol < srclocation.x) rightmostCol = srclocation.x;
if (topmostRow > srclocation.y) topmostRow = srclocation.y;
if (bottommostRow < srclocation.y) bottommostRow = srclocation.y;
if (srclocation.y < 0
|| srclocation.y >= srcheight
|| srclocation.x < 0
|| srclocation.x >= srcwidth) {
dst[dstpos] = (byte) 0;
outOfBounds = true;
} else
dst[dstpos] =
src[
srcBegCurBand
+ ((srclocation.y * srcScanLineStride) + (srclocation.x * srcPixelStride))];
dstpos += dstPixelStride;
}
dstBegCurRow += dstScanLineStride;
}
}
frameCut = true;
return ret;
}
