pColorPacket CAtmoColorCalculator::AnalyzeHSV(tHSVColor *HSV_Img) { int i; // counter int AtmoSetup_EdgeWeighting = m_pAtmoConfig->getLiveView_EdgeWeighting(); int AtmoSetup_WidescreenMode = m_pAtmoConfig->getLiveView_WidescreenMode(); int AtmoSetup_DarknessLimit = m_pAtmoConfig->getLiveView_DarknessLimit(); int AtmoSetup_BrightCorrect = m_pAtmoConfig->getLiveView_BrightCorrect(); int AtmoSetup_SatWinSize = m_pAtmoConfig->getLiveView_SatWinSize(); int AtmoSetup_NumZones = m_pAtmoConfig->getZoneCount(); tHSVColor *temp_Img; if(AtmoSetup_NumZones != m_LastNumZones) { delete[] m_Weight; delete[] m_hue_hist; delete[] m_windowed_hue_hist; delete[] m_most_used_hue_last; delete[] m_most_used_hue; delete[] m_sat_hist; delete[] m_windowed_sat_hist; delete[] m_most_used_sat; delete[] m_Zone_Weights; delete[] m_average_v; delete[] m_average_counter; m_Weight = new int[AtmoSetup_NumZones * IMAGE_SIZE]; m_Zone_Weights = new int*[AtmoSetup_NumZones]; for(int i = 0; i < AtmoSetup_NumZones; i++) m_Zone_Weights[i] = &m_Weight[i * IMAGE_SIZE]; m_hue_hist = new long int[(h_MAX+1) * AtmoSetup_NumZones]; m_windowed_hue_hist = new long int[(h_MAX+1) * AtmoSetup_NumZones]; m_most_used_hue_last = new int[AtmoSetup_NumZones]; m_most_used_hue = new int[AtmoSetup_NumZones]; memset( m_most_used_hue_last, 0, sizeof(int) * AtmoSetup_NumZones); m_sat_hist = new long int[(s_MAX+1) * AtmoSetup_NumZones]; m_windowed_sat_hist = new long int[(s_MAX+1) * AtmoSetup_NumZones]; m_most_used_sat = new int[AtmoSetup_NumZones]; m_average_v = new long int[AtmoSetup_NumZones]; m_average_counter = new int[AtmoSetup_NumZones]; m_LastNumZones = AtmoSetup_NumZones; } // calculate only if setup has changed if ((AtmoSetup_EdgeWeighting != m_LastEdgeWeighting) || (AtmoSetup_WidescreenMode != m_LastWidescreenMode) || (m_pAtmoConfig->getZonesTopCount() != m_LastLayout_TopCount) || (m_pAtmoConfig->getZonesBottomCount() != m_LastLayout_BottomCount) || (m_pAtmoConfig->getZonesLRCount() != m_LastLayout_LRCount) || (m_pAtmoConfig->m_UpdateEdgeWeightningFlag != 0) ) { for(i = 0 ;i < AtmoSetup_NumZones; i++) { CAtmoZoneDefinition *pZoneDef = m_pAtmoConfig->getZoneDefinition(i); if(pZoneDef) { pZoneDef->UpdateWeighting(m_Zone_Weights[i], AtmoSetup_WidescreenMode, AtmoSetup_EdgeWeighting); #ifdef _debug_zone_weight_ char filename[128]; sprintf(filename, "zone_%d_gradient_debug.bmp",i); pZoneDef->SaveZoneBitmap( filename ); sprintf(filename, "zone_%d_weight_%d_debug.bmp",i,AtmoSetup_EdgeWeighting); pZoneDef->SaveWeightBitmap(filename, m_Zone_Weights[i] ); #endif } } m_pAtmoConfig->m_UpdateEdgeWeightningFlag = 0; m_LastEdgeWeighting = AtmoSetup_EdgeWeighting; m_LastWidescreenMode = AtmoSetup_WidescreenMode; m_LastLayout_TopCount = m_pAtmoConfig->getZonesTopCount(); m_LastLayout_BottomCount = m_pAtmoConfig->getZonesBottomCount(); m_LastLayout_LRCount = m_pAtmoConfig->getZonesLRCount(); } AtmoSetup_DarknessLimit = AtmoSetup_DarknessLimit * 10; /***************************************************************************/ /* Hue */ /***************************************************************************/ /*----------------------------*/ /* hue histogram builtup */ /*----------------------------*/ // HSV histogram // long int hue_hist[CAP_MAX_NUM_ZONES][h_MAX+1]; // average brightness (value) // m_average_v m_average_counter // clean histogram --> calloc memset(m_hue_hist, 0, sizeof(long int) * (h_MAX+1) * AtmoSetup_NumZones); memset(m_average_v, 0, sizeof(long int) * AtmoSetup_NumZones); memset(m_average_counter, 0, sizeof(int) * AtmoSetup_NumZones); temp_Img = HSV_Img; i = 0; for (int row = 0; row < CAP_HEIGHT; row++) { for (int column = 0; column < CAP_WIDTH; column++) { // forget black bars: perform calculations only if pixel has some luminosity if ((*temp_Img).v > AtmoSetup_DarknessLimit) { // builtup histogram for the x Zones of the Display for (int zone = 0; zone < AtmoSetup_NumZones; zone++) { // Add weight to channel // Weight(zone, pixel_nummer) m_Weight[((zone) * (IMAGE_SIZE)) + (pixel_nummer)] // m_hue_hist[zone*(h_MAX+1) + HSV_Img[i].h] += m_Zone_Weights[zone][i] * HSV_Img[i].v; m_hue_hist[zone*(h_MAX+1) + (*temp_Img).h] += m_Zone_Weights[zone][i] * temp_Img->v; if(m_Zone_Weights[zone][i] > 0) { m_average_v[zone] += temp_Img->v; m_average_counter[zone]++; } } // calculate brightness average } temp_Img++; i++; } } /*----------------------------*/ /* hue histogram windowing */ /*----------------------------*/ // windowed HSV histogram // long int w_hue_hist[CAP_MAX_NUM_ZONES][h_MAX+1]; -> m_windowed_hue_hist // clean windowed histogram memset(m_windowed_hue_hist, 0, sizeof(long int) * (h_MAX+1) * AtmoSetup_NumZones); // steps in each direction; eg. 2 => -2 -1 0 1 2 windowing int hue_windowsize = m_pAtmoConfig->getLiveView_HueWinSize(); for (i = 0; i < h_MAX+1; i++) // walk through histogram [0;h_MAX] { // windowing from -hue_windowsize -> +hue_windowsize for (int mywin = -hue_windowsize; mywin < hue_windowsize+1; mywin++) { // addressed histogram candlestick int myidx = i + mywin; // handle beginning of windowing -> roll back if (myidx < 0) { myidx = myidx + h_MAX + 1; } // handle end of windowing -> roll forward if (myidx > h_MAX) { myidx = myidx - h_MAX - 1; } // Apply windowing to all x zones for (int zone = 0; zone < AtmoSetup_NumZones; zone++) { // apply lite triangular window design with gradient of 10% per discrete step m_windowed_hue_hist[(zone * (h_MAX+1)) + i] += m_hue_hist[(zone * (h_MAX+1)) + myidx] * ((hue_windowsize+1)-abs(mywin)); // apply window } } } /*--------------------------------------*/ /* analyze histogram for most used hue */ /*--------------------------------------*/ // index of last maximum // static int most_used_hue_last[CAP_MAX_NUM_ZONES] = {0, 0, 0, 0, 0}; --> m_most_used_hue_last // resulting hue for each channel //int most_used_hue[CAP_MAX_NUM_ZONES]; --> m_most_used_hue FindMostUsed(AtmoSetup_NumZones, m_most_used_hue, m_windowed_hue_hist); for (int zone = 0; zone < AtmoSetup_NumZones; zone++) { float percent = (float)m_windowed_hue_hist[zone * (h_MAX+1) + m_most_used_hue_last[zone]] / (float)m_windowed_hue_hist[zone * (h_MAX+1) + m_most_used_hue[zone]]; if (percent > 0.93f) // less than 7% difference? m_most_used_hue[zone] = m_most_used_hue_last[zone]; // use last index else m_most_used_hue_last[zone] = m_most_used_hue[zone]; } /* memset(m_most_used_hue, 0, sizeof(int) * AtmoSetup_NumZones); for (int zone = 0; zone < AtmoSetup_NumZones; zone++) { long int value = 0; for (i = 0; i < h_MAX+1; i++) // walk through histogram { long int tmp = m_windowed_hue_hist[ (zone * (h_MAX+1)) + i ]; if (tmp > value) // if new value bigger then old one { m_most_used_hue[zone] = i; // remember index value = tmp; // w_hue_hist[zone][i]; // and value } } float percent = (float)m_windowed_hue_hist[zone * (h_MAX+1) + m_most_used_hue_last[zone]] / (float)value; if (percent > 0.93f) // less than 7% difference? { m_most_used_hue[zone] = m_most_used_hue_last[zone]; // use last index } m_most_used_hue_last[zone] = m_most_used_hue[zone]; // save current index of most used hue } */ /***************************************************************************/ /* saturation */ /***************************************************************************/ // sat histogram // long int sat_hist[CAP_MAX_NUM_ZONES][s_MAX+1]; -> m_sat_hist // hue of the pixel we are working at int pixel_hue = 0; // clean histogram memset(m_sat_hist, 0, sizeof(long int) * (s_MAX+1) * AtmoSetup_NumZones); /*--------------------------------------*/ /* saturation histogram builtup */ /*--------------------------------------*/ i = 0; temp_Img = HSV_Img; for (int row = 0; row < CAP_HEIGHT; row++) { for (int column = 0; column < CAP_WIDTH; column++) { // forget black bars: perform calculations only if pixel has some luminosity if ((*temp_Img).v > AtmoSetup_DarknessLimit) { // find histogram position for pixel pixel_hue = (*temp_Img).h; // TODO: brightness calculation(if we require it some time) for (int zone = 0; zone < AtmoSetup_NumZones; zone++) { // only use pixel for histogram if hue is near most_used_hue if ((pixel_hue > m_most_used_hue[zone] - hue_windowsize) && (pixel_hue < m_most_used_hue[zone] + hue_windowsize)) { // build histogram // sat_hist[channel][HSV_Img[i].s] += Weight[i].channel[channel] * HSV_Img[i].v; m_sat_hist[zone * (s_MAX+1) + (*temp_Img).s ] += m_Zone_Weights[zone][i] * (*temp_Img).v; } } } i++; temp_Img++; } } /*--------------------------------------*/ /* saturation histogram windowing */ /*--------------------------------------*/ // windowed HSV histogram // long int w_sat_hist[CAP_MAX_NUM_ZONES][s_MAX+1]; --> m_windowed_sat_hist // clean windowed histogram memset(m_windowed_sat_hist, 0, sizeof(long int) * (s_MAX+1) * AtmoSetup_NumZones); // steps in each direction; eg. 2 => -2 -1 0 1 2 windowing int sat_windowsize = AtmoSetup_SatWinSize; // walk through histogram [0;h_MAX] for (i = 0; i < s_MAX + 1; i++) { // windowing from -hue_windowsize -> +hue_windowsize for (int mywin = -sat_windowsize; mywin < sat_windowsize+1; mywin++) { // addressed histogram candlestick int myidx = i + mywin; // handle beginning of windowing -> roll back if (myidx < 0) { myidx = myidx + s_MAX + 1; } // handle end of windowing -> roll forward if (myidx > h_MAX) { myidx = myidx - s_MAX - 1; } for (int zone = 0; zone < AtmoSetup_NumZones; zone++) { /* apply lite triangular window design with gradient of 10% per discrete step */ /* w_sat_hist[channel][i] += sat_hist[channel][myidx] * ((sat_windowsize+1)-abs(mywin)); // apply window */ m_windowed_sat_hist[zone * (s_MAX+1) + i] += m_sat_hist[zone* (h_MAX+1) + myidx] * ((sat_windowsize+1)-abs(mywin)); // apply window } } } /*--------------------------------------*/ /* analyze histogram for most used sat */ /*--------------------------------------*/ // resulting sat (most_used_hue) for each channel // int most_used_sat[CAP_MAX_NUM_ZONES];->m_most_used_sat FindMostUsed(AtmoSetup_NumZones, m_most_used_sat, m_windowed_sat_hist); /* memset(m_most_used_sat, 0, sizeof(int) * AtmoSetup_NumZones); for (int zone = 0; zone < AtmoSetup_NumZones; zone++) { int value = 0; // walk trough histogram for (i = 0; i < s_MAX+1; i++) { // if new value bigger then old one int tmp = m_windowed_sat_hist[zone * (s_MAX+1) + i]; // if (w_sat_hist[channel][i] > value) if (tmp > value) { // remember index m_most_used_sat[zone] = i; // and value value = tmp; } } } */ /*----------------------------------------------------------*/ /* calculate average brightness within HSV image */ /* uniform Brightness for all channels is calculated */ /*----------------------------------------------------------*/ /* code integrated into "hue histogram builtup" to save some looping time! int l_counter = 0; // average brightness (value) long int value_avg = 0; i = 0; for (int row = 0; row < CAP_HEIGHT; row++) { for (int column = 0; column < CAP_WIDTH; column++) { // find average value: only use bright pixels for luminance average if (HSV_Img[i].v > AtmoSetup_DarknessLimit) { // build brightness average value_avg += HSV_Img[i].v; l_counter++; } i++; } } // calculate brightness average if (l_counter > 0) { value_avg = value_avg / l_counter; } else { value_avg = AtmoSetup_DarknessLimit; } */ /*----------------------------*/ /* adjust and copy results */ /*----------------------------*/ tHSVColor hsv_pixel; // storage container for resulting RGB values pColorPacket output_colors; AllocColorPacket(output_colors, AtmoSetup_NumZones); // adjust brightness // int new_value = (int) ((float)value_avg * ((float)AtmoSetup_BrightCorrect / 100.0)); // if (new_value > 255) new_value = 255; // ensure brightness isn't set too high // hsv_pixel.v = (unsigned char)new_value; /* // calculate brightness average for(int zone = 0; zone < AtmoSetup_NumZones; zone++) { if(m_average_counter[zone] > 0) m_average_v[zone] = m_average_v[zone] / m_average_counter[zone] else m_average_v[zone] = AtmoSetup_DarknessLimit; } */ for (int zone = 0; zone < AtmoSetup_NumZones; zone++) { if(m_average_counter[zone] > 0) m_average_v[zone] = m_average_v[zone] / m_average_counter[zone]; else m_average_v[zone] = AtmoSetup_DarknessLimit; m_average_v[zone] = (int)((float)m_average_v[zone] * ((float)AtmoSetup_BrightCorrect / 100.0)); hsv_pixel.v = (unsigned char)ATMO_MAX(ATMO_MIN(m_average_v[zone],255),0); hsv_pixel.h = m_most_used_hue[zone]; hsv_pixel.s = m_most_used_sat[zone]; // convert back to rgb output_colors->zone[zone] = HSV2RGB(hsv_pixel); } return output_colors; }