Extract the Red lantern inside the image (ii)

First, the image is processed in a simple threshold:

/************************************************************** function: Extraction of red lantern in the image HSI space input parameters: source image src; Target image des ; image parameter width,height,nchannels; output parameter: Target image **************************************************************/void Hsi_ SEG (unsigned char* des, const unsigned char* src, int width, int height, int nchannels) {printf ("%d,%d,%d,", Nchannels,width  , height); unsigned char* OCL = new unsigned char[width * height * nchannels];unsigned char* HSI = new unsigned char[width *  Height * NCHANNELS];RGB_HSI (hsi,src, width, height, nchannels),//HSI component extraction for (int y = 0; y < height; y++) {for (int x = 0; x < width; X + +) {int img_h= hsi[y * Width * nchannels + x * nchannels]; int img_s= hsi[y * Width * nchannels + x * nchannels + 1]; in T img_i= hsi[y * Width * nchannels + x * nchannels + 2]; if (img_h<104) && (img_h>102) && (img_i>40) &  amp;& (img_s>60)) {//printf ("%d,", img_s); for (int n=0;n<nchannels;n++) des[y * Width * nchannels + x * nchannels + N] = src[y * Width * nchannels + x * NchanNels + n];} elsefor (int n=0;n<nchannels;n++) des[y * Width * nchannels + x * nchannels + n] = 255;}} Imagedilation (Ocl, des, width, height, nchannels,3);//template expansion for 3*3

　　

Extract the red component as shown, and then do the expansion of the 3*3 template again:

Once again corrosion and fill, the effect is as follows:

Here is the code for the image fill:

void Imgfill (unsigned char* des, const unsigned char* src, int width, int height, int nchannels) {memcpy (DES, SRC, nchannel S*width*height);//TODO: This adds the command handler code//record fills the leftmost position of the row int left_x=0;//record fills the right-most position of the row int right_x=0;//record fills the top position of the column int top_y=0;// Record padding column's bottom position int bottom_y=0;//landscape fill for (int y=0;y
　　
Another 8*8 of corrosion and 5*5 expansion:
Finally reconstruct the image:
Second, to the large window area shadow enhancement
/************************************************************** function: Histogram equalization for Image window shadows input parameters: source image src; Target image des ; image parameter width,height,nchannels; output parameter: Target image **************************************************************/void Win_ Enhance (unsigned char* des, const unsigned char* src, int width, int height, int nchannels) {printf ("%d,%d,%d,", nchannels,w idth,height); unsigned char* OCL = new unsigned char[width * height * nchannels];unsigned char* flag = new unsigned Char[wi DTH * Height * nchannels];int r[256] = {0}, g[256] = {0}, b[256] = {0};int sum = 0; Synthesis of pixel points in the image for (int y = 0; y < height; y++) {for (int x = 0; x < width; x + +) {int b= src[y * Width * nchannels + x * nCh Annels]; int g= src[y * Width * nchannels + x * nchannels + 1]; int r= src[y * Width * nchannels + x * nchannels + 2]; if ((r+g+b<120) && (Y < height-240) && (y >250)) {//printf ("%d,", img_s); for (int n=0;n<nchannels;n++) {des[y * Width * nchannels + x * nchannels + N] = src[y * Width * n Channels + x * nchannels + n] ;}} else{for (int n=0;n<nchannels;n++) {des[y * Width * nchannels + x * nchannels + n] = 255;}}} Imageerosion (Ocl, des, width, height, nchannels,9), Imagedilation (DES, OCL, width, height, nchannels,10);
　　
After a simple threshold processing, a 9*9 corrosion and a 10*10 expansion diagram are performed:
The histogram equalization for the shaded area is as follows:
memcpy (OCL, des,nchannels*width*height); for (int. y=0; y
　　
The final effect is as follows:
Extract the Red lantern inside the image (ii)