Image Preprocessing Techniques Roberts Filter Prewitt Filter Sobel Filter Laplacian Filter Median Filter Submitted by- Miss. Shruti Naik
Discrete Cosine Transform and Inverse Discrete Cosine Transform Submitted by – Shruti Naik
HUFFMAN Coding Submitted by – Shruti Naik
High Boost Filtering Submitted by – Shruti Naik
clc; clear all; close all; function out_put = btc_image(in_put,block_size) X=imread(‘rice.png’); Y=imfinfo(‘rice.png’); K=input(‘Enter the block size’); X1=double(X); y1=size(X); n=y1(1); m=y1(2); k=1;l=1; if (Y.ColorType==’grayscale’) % IMAGE ENCODING… Read More »Lossy Image Compression
% **** HISTOGRAM STRETCHING **** a=imread(‘old imagelc.jpg’); aa=double(a); [row col]=size(aa); h=zeros(1,300); rmax=(max(max(aa))); rmin=(min(min(aa))); slope=255/(rmax-rmin); smin=0; aa=aa+1; for x=1:row for y=1:col c(x,y)=slope*(aa(x,y)-rmin)+smin; end… Read More »HISTOGRAM STRETCHING
% **** HOMOMORPHIC FILTERING **** a=imread(‘Ranch house.jpg’); r1=double(a); [row col]=size(r1); b=r1; D0=input(‘enter cut off : ‘); Yh=input(‘enter the value of Yh :’); Yl=input(‘enter the value… Read More »HOMOMORPHIC FILTERING
% region filling clc; close all; clear all; % Input A=[0 0 0 0 0 0 0 0 0 1 1 0 0 0… Read More »Region Filling Morphological Operation
% **** BIT PLANE SLICING **** a=imread(‘Moon.tif’); b=double(a); [row col]=size(b); %r=input(‘enter bitval : ‘); for x=1:row for y=1:col c=dec2bin(b(x,y),8); d=c(1); w1(x,y)=double(d);… Read More »BIT PLANE SLICING
This program displays following details for a given image 1. Jet Colormap Image 2. Background Estimation 3. Flattened Background Removal 4. Image Thresholding 5. Connected… Read More »Plot the Image details using histogram