How to change the pixel value int16 to new value?

Dear All,

I have image dicom. as attached. dimension is 128x128, have 45 frame. the type is int16.

I want to convert all the pixel value with new value IMG_cps as code below (the last one).

Anyone can help me?

clc
clear all
close all

Image_name = 'SPECTCTLD_EM_IRNCRR001_DS.dcm';  % add your file name

%% read dicom image
IMG = dicomread(Image_name);    
IMG = double(IMG);              % chage data type double

%% read dicom information 
INFO = dicominfo(Image_name);   

% time per projection
Time_per_projection = double(INFO.RotationInformationSequence.Item_1.ActualFrameDuration); % in msec
Time_per_projection = Time_per_projection/1000; % convert to sec

% number of projection
Num_projection = double(INFO.RotationInformationSequence.Item_1.NumberOfFramesInRotation);  

% calculate acquisition time
Acquistion_duration = Time_per_projection * Num_projection;   % sec

%% calculate cps in each pixel
IMG_cps = IMG/Acquistion_duration;

Answer 1

[Image Analyst]

Not sure I understand this: "I want to convert all the pixel value with new value IMG_cps" but why can't you just say

IMG(:,:) = IMG_cps;

where IMG_cps is your desired new gray level.