/**
* 指定した場所のピクセル値を調査して、閾値を計算して返します。
* @param i_reader
* @param i_x
* @param i_y
* @return
* @throws NyARException
*/
public void detectThresholdValue(INyARRgbPixelReader i_reader, NyARIntSize i_raster_size, TThreshold o_threshold)
{
int[] th_pixels = this._th_pixels;
//左上のピックアップ領域からピクセルを得る(00-24)
rectPixels(i_reader, i_raster_size, THRESHOLD_SAMPLE_LT, THRESHOLD_SAMPLE_LT, THRESHOLD_STEP, THRESHOLD_STEP, THRESHOLD_PIXEL, THRESHOLD_PIXEL, 0, th_pixels);
//左下のピックアップ領域からピクセルを得る(25-49)
rectPixels(i_reader, i_raster_size, THRESHOLD_SAMPLE_LT, THRESHOLD_SAMPLE_RB, THRESHOLD_STEP, THRESHOLD_STEP, THRESHOLD_PIXEL, THRESHOLD_PIXEL, THRESHOLD_SAMPLE, th_pixels);
//右上のピックアップ領域からピクセルを得る(50-74)
rectPixels(i_reader, i_raster_size, THRESHOLD_SAMPLE_RB, THRESHOLD_SAMPLE_LT, THRESHOLD_STEP, THRESHOLD_STEP, THRESHOLD_PIXEL, THRESHOLD_PIXEL, THRESHOLD_SAMPLE * 2, th_pixels);
//右下のピックアップ領域からピクセルを得る(75-99)
rectPixels(i_reader, i_raster_size, THRESHOLD_SAMPLE_RB, THRESHOLD_SAMPLE_RB, THRESHOLD_STEP, THRESHOLD_STEP, THRESHOLD_PIXEL, THRESHOLD_PIXEL, THRESHOLD_SAMPLE * 3, th_pixels);
THighAndLow hl = this.__detectThresholdValue_hl;
//Ptailで求めたピクセル平均
getPtailHighAndLow(th_pixels, hl);
//閾値中心
int th = (hl.h + hl.l) / 2;
//ヒステリシス(差分の20%)
int th_sub = (hl.h - hl.l) / 5;
o_threshold.th = th;
o_threshold.th_h = th + th_sub; //ヒステリシス付き閾値
o_threshold.th_l = th - th_sub; //ヒステリシス付き閾値
//エッジを計算(明点重心)
int lt_x, lt_y, lb_x, lb_y, rt_x, rt_y, rb_x, rb_y;
NyARIntPoint2d tpt = this.__detectThresholdValue_tpt;
//LT
if (getHighPixelCenter(0, th_pixels, THRESHOLD_PIXEL, THRESHOLD_PIXEL, th, tpt))
{
lt_x = tpt.x * THRESHOLD_STEP;
lt_y = tpt.y * THRESHOLD_STEP;
}
else
{
lt_x = 11;
lt_y = 11;
}
//LB
if (getHighPixelCenter(THRESHOLD_SAMPLE * 1, th_pixels, THRESHOLD_PIXEL, THRESHOLD_PIXEL, th, tpt))
{
lb_x = tpt.x * THRESHOLD_STEP;
lb_y = tpt.y * THRESHOLD_STEP;
}
else
{
lb_x = 11;
lb_y = -1;
}
//RT
if (getHighPixelCenter(THRESHOLD_SAMPLE * 2, th_pixels, THRESHOLD_PIXEL, THRESHOLD_PIXEL, th, tpt))
{
rt_x = tpt.x * THRESHOLD_STEP;
rt_y = tpt.y * THRESHOLD_STEP;
}
else
{
rt_x = -1;
rt_y = 11;
}
//RB
if (getHighPixelCenter(THRESHOLD_SAMPLE * 3, th_pixels, THRESHOLD_PIXEL, THRESHOLD_PIXEL, th, tpt))
{
rb_x = tpt.x * THRESHOLD_STEP;
rb_y = tpt.y * THRESHOLD_STEP;
}
else
{
rb_x = -1;
rb_y = -1;
}
//トラッキング開始位置の決定
o_threshold.lt_x = (lt_x + lb_x) / 2 + THRESHOLD_SAMPLE_LT - 1;
o_threshold.rb_x = (rt_x + rb_x) / 2 + THRESHOLD_SAMPLE_RB + 1;
o_threshold.lt_y = (lt_y + rt_y) / 2 + THRESHOLD_SAMPLE_LT - 1;
o_threshold.rb_y = (lb_y + rb_y) / 2 + THRESHOLD_SAMPLE_RB + 1;
return;
}
/**
* この関数はマーカパターンから、敷居値を決定します。
* @param i_reader
* ラスタリーダオブジェクト
* @param i_raster_size
* ラスのタのサイズ
* @param o_threshold
* 敷居値を受け取るオブジェクト
* @
*/
public void detectThresholdValue(INyARGsPixelDriver i_reader, TThreshold o_threshold)
{
int[] th_pixels = this._th_pixels;
NyARIntSize size = i_reader.getSize();
//左上のピックアップ領域からピクセルを得る(00-24)
rectPixels(i_reader, size, THRESHOLD_SAMPLE_LT, THRESHOLD_SAMPLE_LT, THRESHOLD_STEP, THRESHOLD_STEP, THRESHOLD_PIXEL, THRESHOLD_PIXEL, 0, th_pixels);
//左下のピックアップ領域からピクセルを得る(25-49)
rectPixels(i_reader, size, THRESHOLD_SAMPLE_LT, THRESHOLD_SAMPLE_RB, THRESHOLD_STEP, THRESHOLD_STEP, THRESHOLD_PIXEL, THRESHOLD_PIXEL, THRESHOLD_SAMPLE, th_pixels);
//右上のピックアップ領域からピクセルを得る(50-74)
rectPixels(i_reader, size, THRESHOLD_SAMPLE_RB, THRESHOLD_SAMPLE_LT, THRESHOLD_STEP, THRESHOLD_STEP, THRESHOLD_PIXEL, THRESHOLD_PIXEL, THRESHOLD_SAMPLE * 2, th_pixels);
//右下のピックアップ領域からピクセルを得る(75-99)
rectPixels(i_reader, size, THRESHOLD_SAMPLE_RB, THRESHOLD_SAMPLE_RB, THRESHOLD_STEP, THRESHOLD_STEP, THRESHOLD_PIXEL, THRESHOLD_PIXEL, THRESHOLD_SAMPLE * 3, th_pixels);
THighAndLow hl = this.__detectThresholdValue_hl;
//Ptailで求めたピクセル平均
getPtailHighAndLow(th_pixels, hl);
//閾値中心
int th = (hl.h + hl.l) / 2;
//ヒステリシス(差分の20%)
int th_sub = (hl.h - hl.l) / 5;
o_threshold.th = th;
o_threshold.th_h = th + th_sub;//ヒステリシス付き閾値
o_threshold.th_l = th - th_sub;//ヒステリシス付き閾値
//エッジを計算(明点重心)
int lt_x, lt_y, lb_x, lb_y, rt_x, rt_y, rb_x, rb_y;
NyARIntPoint2d tpt = this.__detectThresholdValue_tpt;
//LT
if (getHighPixelCenter(0, th_pixels, THRESHOLD_PIXEL, THRESHOLD_PIXEL, th, tpt))
{
lt_x = tpt.x * THRESHOLD_STEP;
lt_y = tpt.y * THRESHOLD_STEP;
}
else
{
lt_x = 11;
lt_y = 11;
}
//LB
if (getHighPixelCenter(THRESHOLD_SAMPLE * 1, th_pixels, THRESHOLD_PIXEL, THRESHOLD_PIXEL, th, tpt))
{
lb_x = tpt.x * THRESHOLD_STEP;
lb_y = tpt.y * THRESHOLD_STEP;
}
else
{
lb_x = 11;
lb_y = -1;
}
//RT
if (getHighPixelCenter(THRESHOLD_SAMPLE * 2, th_pixels, THRESHOLD_PIXEL, THRESHOLD_PIXEL, th, tpt))
{
rt_x = tpt.x * THRESHOLD_STEP;
rt_y = tpt.y * THRESHOLD_STEP;
}
else
{
rt_x = -1;
rt_y = 11;
}
//RB
if (getHighPixelCenter(THRESHOLD_SAMPLE * 3, th_pixels, THRESHOLD_PIXEL, THRESHOLD_PIXEL, th, tpt))
{
rb_x = tpt.x * THRESHOLD_STEP;
rb_y = tpt.y * THRESHOLD_STEP;
}
else
{
rb_x = -1;
rb_y = -1;
}
//トラッキング開始位置の決定
o_threshold.lt_x = (lt_x + lb_x) / 2 + THRESHOLD_SAMPLE_LT - 1;
o_threshold.rb_x = (rt_x + rb_x) / 2 + THRESHOLD_SAMPLE_RB + 1;
o_threshold.lt_y = (lt_y + rt_y) / 2 + THRESHOLD_SAMPLE_LT - 1;
o_threshold.rb_y = (lb_y + rb_y) / 2 + THRESHOLD_SAMPLE_RB + 1;
return;
}
