/**
* この関数は、マーカパターンからデータを読み取ります。
* @param i_reader
* ラスタリーダ
* @param i_raster_size
* ラスタのサイズ
* @param i_th
* 敷居値情報
* @param o_bitbuffer
* データビットの出力先
* @return
* 成功するとtrue
* @
*/
public bool readDataBits(INyARGsPixelDriver i_reader, NyARIntSize i_raster_size, PerspectivePixelReader.TThreshold i_th, MarkerPattEncoder o_bitbuffer)
{
int raster_width = i_raster_size.w;
int raster_height = i_raster_size.h;
double[] index_x = this.__readDataBits_index_bit_x;
double[] index_y = this.__readDataBits_index_bit_y;
//読み出し位置を取得
int size = detectDataBitsIndex(i_reader, i_raster_size, i_th, index_x, index_y);
int resolution = size + size - 1;
if (size < 0)
{
return false;
}
if (!o_bitbuffer.initEncoder(size - 1))
{
return false;
}
double[] cpara = this._cparam;
int[] ref_x = this._ref_x;
int[] ref_y = this._ref_y;
int[] pixcel_temp = this._pixcel_temp;
double cpara_0 = cpara[0];
double cpara_1 = cpara[1];
double cpara_3 = cpara[3];
double cpara_6 = cpara[6];
int th = i_th.th;
int p = 0;
for (int i = 0; i < resolution; i++)
{
//1列分のピクセルのインデックス値を計算する。
double cy0 = 1 + index_y[i * 2 + 0];
double cy1 = 1 + index_y[i * 2 + 1];
double cpy0_12 = cpara_1 * cy0 + cpara[2];
double cpy0_45 = cpara[4] * cy0 + cpara[5];
double cpy0_7 = cpara[7] * cy0 + 1.0;
double cpy1_12 = cpara_1 * cy1 + cpara[2];
double cpy1_45 = cpara[4] * cy1 + cpara[5];
double cpy1_7 = cpara[7] * cy1 + 1.0;
int pt = 0;
for (int i2 = 0; i2 < resolution; i2++)
{
int xx, yy;
double d;
double cx0 = 1 + index_x[i2 * 2 + 0];
double cx1 = 1 + index_x[i2 * 2 + 1];
double cp6_0 = cpara_6 * cx0;
double cpx0_0 = cpara_0 * cx0;
double cpx3_0 = cpara_3 * cx0;
double cp6_1 = cpara_6 * cx1;
double cpx0_1 = cpara_0 * cx1;
double cpx3_1 = cpara_3 * cx1;
d = cp6_0 + cpy0_7;
ref_x[pt] = xx = (int)((cpx0_0 + cpy0_12) / d);
ref_y[pt] = yy = (int)((cpx3_0 + cpy0_45) / d);
if (xx < 0 || xx >= raster_width || yy < 0 || yy >= raster_height)
{
ref_x[pt] = xx < 0 ? 0 : (xx >= raster_width ? raster_width - 1 : xx);
ref_y[pt] = yy < 0 ? 0 : (yy >= raster_height ? raster_height - 1 : yy);
}
pt++;
d = cp6_0 + cpy1_7;
ref_x[pt] = xx = (int)((cpx0_0 + cpy1_12) / d);
ref_y[pt] = yy = (int)((cpx3_0 + cpy1_45) / d);
if (xx < 0 || xx >= raster_width || yy < 0 || yy >= raster_height)
{
ref_x[pt] = xx < 0 ? 0 : (xx >= raster_width ? raster_width - 1 : xx);
ref_y[pt] = yy < 0 ? 0 : (yy >= raster_height ? raster_height - 1 : yy);
}
pt++;
d = cp6_1 + cpy0_7;
ref_x[pt] = xx = (int)((cpx0_1 + cpy0_12) / d);
ref_y[pt] = yy = (int)((cpx3_1 + cpy0_45) / d);
if (xx < 0 || xx >= raster_width || yy < 0 || yy >= raster_height)
{
ref_x[pt] = xx < 0 ? 0 : (xx >= raster_width ? raster_width - 1 : xx);
ref_y[pt] = yy < 0 ? 0 : (yy >= raster_height ? raster_height - 1 : yy);
}
pt++;
d = cp6_1 + cpy1_7;
ref_x[pt] = xx = (int)((cpx0_1 + cpy1_12) / d);
ref_y[pt] = yy = (int)((cpx3_1 + cpy1_45) / d);
if (xx < 0 || xx >= raster_width || yy < 0 || yy >= raster_height)
{
ref_x[pt] = xx < 0 ? 0 : (xx >= raster_width ? raster_width - 1 : xx);
ref_y[pt] = yy < 0 ? 0 : (yy >= raster_height ? raster_height - 1 : yy);
}
pt++;
}
//1行分のピクセルを取得(場合によっては専用アクセサを書いた方がいい)
i_reader.getPixelSet(ref_x, ref_y, resolution * 4, pixcel_temp, 0);
//グレースケールにしながら、line→mapへの転写
for (int i2 = 0; i2 < resolution; i2++)
{
int index = i2 * 4;
int pixel = (pixcel_temp[index + 0] + pixcel_temp[index + 1] + pixcel_temp[index + 2] + pixcel_temp[index + 3]) / 4;
// +pixcel_temp[index+4]+pixcel_temp[index+5]+
// pixcel_temp[index+6]+pixcel_temp[index+7]+pixcel_temp[index+8]+
// pixcel_temp[index+9]+pixcel_temp[index+10]+pixcel_temp[index+11])/(4*3);
//暗点を1、明点を0で表現します。
o_bitbuffer.setBitByBitIndex(p, pixel > th ? 0 : 1);
p++;
}
}
return true;
}
private int detectDataBitsIndex(INyARGsPixelDriver i_reader, NyARIntSize i_raster_size, PerspectivePixelReader.TThreshold i_th, double[] o_index_row, double[] o_index_col)
{
//周波数を測定
int[] freq_index1 = this.__detectDataBitsIndex_freq_index1;
int[] freq_index2 = this.__detectDataBitsIndex_freq_index2;
int frq_t = getRowFrequency(i_reader, i_raster_size, i_th.lt_y, i_th.th_h, i_th.th_l, freq_index1);
int frq_b = getRowFrequency(i_reader, i_raster_size, i_th.rb_y, i_th.th_h, i_th.th_l, freq_index2);
//周波数はまとも？
if ((frq_t < 0 && frq_b < 0) || frq_t == frq_b)
{
return -1;
}
//タイミングパターンからインデクスを作成
int freq_h, freq_v;
int[] index;
if (frq_t > frq_b)
{
freq_h = frq_t;
index = freq_index1;
}
else
{
freq_h = frq_b;
index = freq_index2;
}
for (int i = 0; i < freq_h + freq_h - 1; i++)
{
o_index_row[i * 2] = ((index[i + 1] - index[i]) * 2 / 5 + index[i]) + FRQ_EDGE;
o_index_row[i * 2 + 1] = ((index[i + 1] - index[i]) * 3 / 5 + index[i]) + FRQ_EDGE;
}
int frq_l = getColFrequency(i_reader, i_raster_size, i_th.lt_x, i_th.th_h, i_th.th_l, freq_index1);
int frq_r = getColFrequency(i_reader, i_raster_size, i_th.rb_x, i_th.th_h, i_th.th_l, freq_index2);
//周波数はまとも？
if ((frq_l < 0 && frq_r < 0) || frq_l == frq_r)
{
return -1;
}
//タイミングパターンからインデクスを作成
if (frq_l > frq_r)
{
freq_v = frq_l;
index = freq_index1;
}
else
{
freq_v = frq_r;
index = freq_index2;
}
//同じ周期？
if (freq_v != freq_h)
{
return -1;
}
for (int i = 0; i < freq_v + freq_v - 1; i++)
{
int w = index[i];
int w2 = index[i + 1] - w;
o_index_col[i * 2] = ((w2) * 2 / 5 + w) + FRQ_EDGE;
o_index_col[i * 2 + 1] = ((w2) * 3 / 5 + w) + FRQ_EDGE;
}
//Lv4以上は無理
if (freq_v > MAX_FREQ)
{
return -1;
}
return freq_v;
}
/**
* コンストラクタです。インスタンスを生成します。
* @
*/
public NyIdMarkerPickup()
{
this._perspective_reader = new PerspectivePixelReader();
return;
}
/**
* コンストラクタです。インスタンスを生成します。
* @
*/
public NyIdMarkerPickup()
{
this._perspective_reader = new PerspectivePixelReader();
return;
}
