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  • 大小: 13KB
    文件類型: .cpp
    金幣: 1
    下載: 0 次
    發布日期: 2021-06-08
  • 語言: C/C++
  • 標簽: bayes??

資源簡介

通過bayes收縮得到收縮函數的閾值,以此對小波高頻分量進行去噪

資源截圖

代碼片段和文件信息

#include
#include
#include
#include
#define?wieth?512
#define?height?512
#define?filter_lenth?16//濾波器長度
#define?dcp_class?4//小波分解級數
#define?k1?0.01
#define?k2?0.03
#define?L?255
#define?sigma_w?1.5
#define?pi?3.1415
#define?patch_size?3
#define?ssim_size?5
#define?Gmax?255
#define?noise_stadard?30
double?GauseNoise(double?var_noise);
double?shrinkage_soft(double?input_shrinkage_softdouble?input_shrinkage_soft_lemda);
void?dcp(double?*start_position_dep_depint?data_lenth_dcp);
void?recs(double?*start_position_recsint?data_lenth_recs);
unsigned?char?Trans(double?input_Trans);
//void?med_make(double?*start_position_medint?datalenth_med_make);//從小到大排序
void?main()
{
????static?unsigned?char?Image[height][wieth]Imagec[height][wieth]ImagecR[height][wieth];
static?float?Imagexf[height][wieth]Imageyf[height][wieth]omega[2*ssim_size+1][2*ssim_size+1];
static?double?ImageRow[wieth]ImageColume[height]ImagefReconstruction[height][wieth]Imagef_Decomposition[height][wieth]Imagef[height][wieth]Imagec_dcp_disp[height][wieth]med[height*wieth/4];
int?ijxyuvdcp_numberheight_dcpwieth_dcpheight_recswieth_recsheight_denoiwieth_denoi;
double?max_phimin_phimax_detailmin_detaillemdasigma_y_estsigma_x_estmax_coefsum_coefsigma_noise_estmediantemp_doublesumabc;
float?sigma_xmu_xsigma_ymu_ysigma_xywic1c2sum_ssimmssimsum_omega;
FILE?*fp1*fp2*fp3*fp4;
fopen_s(&fp1“f:\\image\\wavelet\\lena512.raw““rb“);
fread(Image1wieth*heightfp1);
for(i=0;i for(j=0;j {
Imagef[i][j]=(double)(Image[i][j]+GauseNoise(noise_stadard));
Imagec[i][j]=Trans(Imagef[i][j]);
}
fopen_s(&fp4“f:\\image\\wavelet\\lena512noise_db4.raw““wb“);
fwrite(Imagec1wieth*heightfp4);
for(i=0;i for(j=0;j {
????Imagef_Decomposition[i][j]=Imagef[i][j];
????ImagefReconstruction[i][j]=0;
}
height_dcp=height;
wieth_dcp=wieth;
/////////////////
//以下為分解
for(dcp_number=1;dcp_number<=dcp_class;dcp_number++)
{
????for(i=0;i ????{
????for(j=0;j ????ImageRow[j]=Imagef_Decomposition[i][j];
????dcp(ImageRowwieth_dcp);
????for(j=0;j ????{
????Imagef_Decomposition[i][j]=ImageRow[j];
????ImageRow[j]=0;
????}
????}
????for(j=0;j ????{
????for(i=0;i ????ImageColume[i]=Imagef_Decomposition[i][j];
????dcp(ImageColumeheight_dcp);
????for(i=0;i ????{
????Imagef_Decomposition[i][j]=ImageColume[i];
????ImageColume[i]=0;
????}
????}
????????///////////////////////////////////////////////////////
//以下為每一級分解后的標定,便于顯示
for(i=0;i for(j=0;j Imagec_dcp_disp[i][j]=fabs(Imagef_Decomposition[i][j]);
max_phi=min_phi=Imagec_dcp_disp[0][0];
max_detail=min_detail=0;
for(i=0;i

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