/// <summary> This function generates the ROI mask for the entire tile. The mask is
/// generated for one component. This method is called once for each tile
/// and component.
///
/// </summary>
/// <param name="sb">The root of the subband tree used in the decomposition
///
/// </param>
/// <param name="n">component number
///
/// </param>
public override void makeMask(Subband sb, int magbits, int n)
{
int nr = nrROIs[n];
int r;
int ulx, uly, lrx, lry;
int tileulx = sb.ulcx;
int tileuly = sb.ulcy;
int tilew = sb.w;
int tileh = sb.h;
ROI[] ROIs = roi_array; // local copy
ulxs = new int[nr];
ulys = new int[nr];
lrxs = new int[nr];
lrys = new int[nr];
nr = 0;
for (r = ROIs.Length - 1; r >= 0; r--)
{
if (ROIs[r].comp == n)
{
ulx = ROIs[r].ulx;
uly = ROIs[r].uly;
lrx = ROIs[r].w + ulx - 1;
lry = ROIs[r].h + uly - 1;
if (ulx > (tileulx + tilew - 1) || uly > (tileuly + tileh - 1) || lrx < tileulx || lry < tileuly)
// no part of ROI in tile
continue;
// Check bounds
ulx -= tileulx;
lrx -= tileulx;
uly -= tileuly;
lry -= tileuly;
ulx = (ulx < 0)?0:ulx;
uly = (uly < 0)?0:uly;
lrx = (lrx > (tilew - 1))?tilew - 1:lrx;
lry = (lry > (tileh - 1))?tileh - 1:lry;
ulxs[nr] = ulx;
ulys[nr] = uly;
lrxs[nr] = lrx;
lrys[nr] = lry;
nr++;
}
}
if (nr == 0)
{
roiInTile = false;
}
else
{
roiInTile = true;
}
sMasks[n] = new SubbandRectROIMask(sb, ulxs, ulys, lrxs, lrys, nr);
}
/// <summary> The constructor of the SubbandROIMask takes the dimensions of the
/// subband as parameters. A tree of masks is generated from the subband
/// sb. Each Subband contains the boundaries of each ROI.
///
/// </summary>
/// <param name="sb">The subband corresponding to this Subband Mask
///
/// </param>
/// <param name="ulxs">The upper left x coordinates of the ROIs
///
/// </param>
/// <param name="ulys">The upper left y coordinates of the ROIs
///
/// </param>
/// <param name="lrxs">The lower right x coordinates of the ROIs
///
/// </param>
/// <param name="lrys">The lower right y coordinates of the ROIs
///
/// </param>
/// <param name="lrys">The lower right y coordinates of the ROIs
///
/// </param>
/// <param name="nr">Number of ROIs that affect this tile
///
/// </param>
public SubbandRectROIMask(Subband sb, int[] ulxs, int[] ulys, int[] lrxs, int[] lrys, int nr) : base(sb.ulx, sb.uly, sb.w, sb.h)
{
this.ulxs = ulxs;
this.ulys = ulys;
this.lrxs = lrxs;
this.lrys = lrys;
int r;
if (sb.isNode)
{
isNode = true;
// determine odd/even - high/low filters
int horEvenLow = sb.ulcx % 2;
int verEvenLow = sb.ulcy % 2;
// Get filter support lengths
WaveletFilter hFilter = sb.HorWFilter;
WaveletFilter vFilter = sb.VerWFilter;
int hlnSup = hFilter.SynLowNegSupport;
int hhnSup = hFilter.SynHighNegSupport;
int hlpSup = hFilter.SynLowPosSupport;
int hhpSup = hFilter.SynHighPosSupport;
int vlnSup = vFilter.SynLowNegSupport;
int vhnSup = vFilter.SynHighNegSupport;
int vlpSup = vFilter.SynLowPosSupport;
int vhpSup = vFilter.SynHighPosSupport;
// Generate arrays for children
int x, y;
int[] lulxs = new int[nr];
int[] lulys = new int[nr];
int[] llrxs = new int[nr];
int[] llrys = new int[nr];
int[] hulxs = new int[nr];
int[] hulys = new int[nr];
int[] hlrxs = new int[nr];
int[] hlrys = new int[nr];
for (r = nr - 1; r >= 0; r--)
{
// For all ROI calculate ...
// Upper left x for all children
x = ulxs[r];
if (horEvenLow == 0)
{
lulxs[r] = (x + 1 - hlnSup) / 2;
hulxs[r] = (x - hhnSup) / 2;
}
else
{
lulxs[r] = (x - hlnSup) / 2;
hulxs[r] = (x + 1 - hhnSup) / 2;
}
// Upper left y for all children
y = ulys[r];
if (verEvenLow == 0)
{
lulys[r] = (y + 1 - vlnSup) / 2;
hulys[r] = (y - vhnSup) / 2;
}
else
{
lulys[r] = (y - vlnSup) / 2;
hulys[r] = (y + 1 - vhnSup) / 2;
}
// lower right x for all children
x = lrxs[r];
if (horEvenLow == 0)
{
llrxs[r] = (x + hlpSup) / 2;
hlrxs[r] = (x - 1 + hhpSup) / 2;
}
else
{
llrxs[r] = (x - 1 + hlpSup) / 2;
hlrxs[r] = (x + hhpSup) / 2;
}
// lower right y for all children
y = lrys[r];
if (verEvenLow == 0)
{
llrys[r] = (y + vlpSup) / 2;
hlrys[r] = (y - 1 + vhpSup) / 2;
}
else
{
llrys[r] = (y - 1 + vlpSup) / 2;
hlrys[r] = (y + vhpSup) / 2;
}
}
// Create children
hh = new SubbandRectROIMask(sb.HH, hulxs, hulys, hlrxs, hlrys, nr);
lh = new SubbandRectROIMask(sb.LH, lulxs, hulys, llrxs, hlrys, nr);
hl = new SubbandRectROIMask(sb.HL, hulxs, lulys, hlrxs, llrys, nr);
ll = new SubbandRectROIMask(sb.LL, lulxs, lulys, llrxs, llrys, nr);
}
}
/// <summary> This function generates the ROI mask for the entire tile. The mask is
/// generated for one component. This method is called once for each tile
/// and component.
///
/// </summary>
/// <param name="sb">The root of the subband tree used in the decomposition
///
/// </param>
/// <param name="n">component number
///
/// </param>
public override void makeMask(Subband sb, int magbits, int n)
{
int nr = nrROIs[n];
int r;
int ulx, uly, lrx, lry;
int tileulx = sb.ulcx;
int tileuly = sb.ulcy;
int tilew = sb.w;
int tileh = sb.h;
ROI[] ROIs = roi_array; // local copy
ulxs = new int[nr];
ulys = new int[nr];
lrxs = new int[nr];
lrys = new int[nr];
nr = 0;
for (r = ROIs.Length - 1; r >= 0; r--)
{
if (ROIs[r].comp == n)
{
ulx = ROIs[r].ulx;
uly = ROIs[r].uly;
lrx = ROIs[r].w + ulx - 1;
lry = ROIs[r].h + uly - 1;
if (ulx > (tileulx + tilew - 1) || uly > (tileuly + tileh - 1) || lrx < tileulx || lry < tileuly)
{
// no part of ROI in tile
continue;
}
// Check bounds
ulx -= tileulx;
lrx -= tileulx;
uly -= tileuly;
lry -= tileuly;
ulx = (ulx < 0)?0:ulx;
uly = (uly < 0)?0:uly;
lrx = (lrx > (tilew - 1))?tilew - 1:lrx;
lry = (lry > (tileh - 1))?tileh - 1:lry;
ulxs[nr] = ulx;
ulys[nr] = uly;
lrxs[nr] = lrx;
lrys[nr] = lry;
nr++;
}
}
if (nr == 0)
{
roiInTile = false;
}
else
{
roiInTile = true;
}
sMasks[n] = new SubbandRectROIMask(sb, ulxs, ulys, lrxs, lrys, nr);
}
/// <summary> The constructor of the SubbandROIMask takes the dimensions of the
/// subband as parameters. A tree of masks is generated from the subband
/// sb. Each Subband contains the boundaries of each ROI.
///
/// </summary>
/// <param name="sb">The subband corresponding to this Subband Mask
///
/// </param>
/// <param name="ulxs">The upper left x coordinates of the ROIs
///
/// </param>
/// <param name="ulys">The upper left y coordinates of the ROIs
///
/// </param>
/// <param name="lrxs">The lower right x coordinates of the ROIs
///
/// </param>
/// <param name="lrys">The lower right y coordinates of the ROIs
///
/// </param>
/// <param name="lrys">The lower right y coordinates of the ROIs
///
/// </param>
/// <param name="nr">Number of ROIs that affect this tile
///
/// </param>
public SubbandRectROIMask(Subband sb, int[] ulxs, int[] ulys, int[] lrxs, int[] lrys, int nr):base(sb.ulx, sb.uly, sb.w, sb.h)
{
this.ulxs = ulxs;
this.ulys = ulys;
this.lrxs = lrxs;
this.lrys = lrys;
int r;
if (sb.isNode)
{
isNode = true;
// determine odd/even - high/low filters
int horEvenLow = sb.ulcx % 2;
int verEvenLow = sb.ulcy % 2;
// Get filter support lengths
WaveletFilter hFilter = sb.HorWFilter;
WaveletFilter vFilter = sb.VerWFilter;
int hlnSup = hFilter.SynLowNegSupport;
int hhnSup = hFilter.SynHighNegSupport;
int hlpSup = hFilter.SynLowPosSupport;
int hhpSup = hFilter.SynHighPosSupport;
int vlnSup = vFilter.SynLowNegSupport;
int vhnSup = vFilter.SynHighNegSupport;
int vlpSup = vFilter.SynLowPosSupport;
int vhpSup = vFilter.SynHighPosSupport;
// Generate arrays for children
int x, y;
int[] lulxs = new int[nr];
int[] lulys = new int[nr];
int[] llrxs = new int[nr];
int[] llrys = new int[nr];
int[] hulxs = new int[nr];
int[] hulys = new int[nr];
int[] hlrxs = new int[nr];
int[] hlrys = new int[nr];
for (r = nr - 1; r >= 0; r--)
{
// For all ROI calculate ...
// Upper left x for all children
x = ulxs[r];
if (horEvenLow == 0)
{
lulxs[r] = (x + 1 - hlnSup) / 2;
hulxs[r] = (x - hhnSup) / 2;
}
else
{
lulxs[r] = (x - hlnSup) / 2;
hulxs[r] = (x + 1 - hhnSup) / 2;
}
// Upper left y for all children
y = ulys[r];
if (verEvenLow == 0)
{
lulys[r] = (y + 1 - vlnSup) / 2;
hulys[r] = (y - vhnSup) / 2;
}
else
{
lulys[r] = (y - vlnSup) / 2;
hulys[r] = (y + 1 - vhnSup) / 2;
}
// lower right x for all children
x = lrxs[r];
if (horEvenLow == 0)
{
llrxs[r] = (x + hlpSup) / 2;
hlrxs[r] = (x - 1 + hhpSup) / 2;
}
else
{
llrxs[r] = (x - 1 + hlpSup) / 2;
hlrxs[r] = (x + hhpSup) / 2;
}
// lower right y for all children
y = lrys[r];
if (verEvenLow == 0)
{
llrys[r] = (y + vlpSup) / 2;
hlrys[r] = (y - 1 + vhpSup) / 2;
}
else
{
llrys[r] = (y - 1 + vlpSup) / 2;
hlrys[r] = (y + vhpSup) / 2;
}
}
// Create children
hh = new SubbandRectROIMask(sb.HH, hulxs, hulys, hlrxs, hlrys, nr);
lh = new SubbandRectROIMask(sb.LH, lulxs, hulys, llrxs, hlrys, nr);
hl = new SubbandRectROIMask(sb.HL, hulxs, lulys, hlrxs, llrys, nr);
ll = new SubbandRectROIMask(sb.LL, lulxs, lulys, llrxs, llrys, nr);
}
}