; Name: Arpan Chavda
; Roll No.:09BCE006
; Aim: Enter string from user and convert upper case to lower case and
; vice versa without change in entered number in string.
;it runs on tasm assembler
read macro str1
mov ah,0ah
lea dx,str1
int 21H
endm
disp macro str
mov ah,09h
lea dx,str
int 21h
endm
data segment
str1 db 20
db 0
db 20 dup('$')
msg1 db "Enter the String : $"
msg2 db "Coverted string is:$"
nl db 0dH,0AH,'$'
data ends
code segment
assume cs:code,ds:data
start:
mov ax,data
mov ds,ax
disp msg1
read str1
lea si,str1
inc si
mov cx,[si]
dec cx
lp1: inc si
mov al,[si]
cmp al,39H
jc skip
mov al,[si]
cmp al,5aH
jnc subt
mov al,[si]
add al,20H
mov [si],al
jmp skip
subt: mov al,[si]
sub al,20H
mov [si],al
skip: loop lp1
disp nl
disp msg2
disp nl
disp str1+2
mov ah,4ch
int 21h
code ends
end start
Output:
D:\BORLANDC\BIN>tasm str.asm
Turbo Assembler Version 3.1 Copyright (c) 1988, 1992 Borland International
Assembling file: string.asm
Error messages: None
Warning messages: None
Passes: 1
Remaining memory: 459k
D:\BORLANDC\BIN>tlink str.obj
Turbo Link Version 5.1 Copyright (c) 1992 Borland International
Warning: No stack
D:\BORLANDC\BIN>str.exe
Enter the String : as99DDF
Converted string is:
AS99ddf
Saturday, September 8, 2012
[Assembley Code]How to convert upper case to lower case and vice versa
[PROLOG] How to insert an element in list?
%program to insert an element in list domains A=symbol *. predicates addsym(A,symbol,integer,A). clauses addsym([],S,N,Q):- N<>0. addsym(P,S,N,[S|Q]):- N=0,!, addsym(P,S,-1,Q), write("inserted"). addsym([H|T],S,N,[H|Q]):- B=N-1, addsym(T,S,B,Q), write("ins").
[C-CODE] TCP Implementation in C
/*----------------------------tcp_client.c----------------------------------------*/
#include<stdio.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<netinet/in.h>
#include<string.h>
#define LOCAL_PORT 1500
#define SIZE 20
int main()
{
int sd,cd,len;
char buff1[SIZE],buff[SIZE];
struct sockaddr_in server,client;
sd = socket(AF_INET,SOCK_STREAM,0);
client.sin_family = AF_INET;
client.sin_port = htons(LOCAL_PORT);
client.sin_addr.s_addr = inet_addr("127.0.0.1");
bind(sd,(struct sockaddr *)&client,sizeof(client));
server.sin_family = AF_INET;
server.sin_port = htons(LOCAL_PORT);
server.sin_addr.s_addr = inet_addr("127.0.0.1");
connect(sd,(struct sockaddr *)&server,sizeof(server));
while(1)
{
/*Sending to server*/
printf("Enter the data:");
scanf("%s",buff1);
printf("Data:-%s",buff1);
write(sd,buff1,20);
printf("\n");
/*Receiving from server*/
read(cd,buff,20);
printf("Data:- %s\n",buff);
}
close(sd);
return 0;
}
/*----------------------------tcp_server.c----------------------------------------*/
#include<stdio.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<netinet/in.h>
#define LOCAL_PORT 1500
int main()
{
int sd,cd,buff[20],cliLen;
char buff1[20];
struct sockaddr_in server,client;
sd = socket(AF_INET,SOCK_STREAM,0);
server.sin_family = AF_INET;
server.sin_port = htons(LOCAL_PORT);
server.sin_addr.s_addr = inet_addr("127.0.0.1");
bind(sd,(struct sockaddr *)&server,sizeof(server));
listen(sd,5);
cliLen = sizeof(client);
cd = accept(sd,(struct sockaddr *)&client,&cliLen);
while(1)
{
/*Receiving from client*/
read(cd,buff,20);
printf("Data:- %s\n",buff);
/*Sending to client*/
printf("Enter the data:");
scanf("%s",buff1);
// printf("Data:-%s",buff1);
write(cd,buff1,20);
printf("\n");
}
close(cd);
close(sd);
return 0;
}
[MATLAB] Histogram Matching program
final_img=imread('fig3.jpg');
input_img=imread('fig3.jpg');
ref_img=imread('fig3.jpg');
[m n]=size(input_img);
mn=m*n;
pdf_main=zeros(1,256);
pdf_ref=zeros(1,256);
cdf_main=zeros(1,256);
cdf_ref=zeros(1,256);
tmp=zeros(1,256);
final=zeros(m,n);
%a=0;
%b=0;
for k=1:m
for l=1:n
for r=0:255
if(input_img(k,l)==r)
pdf_main(1,r+1)=pdf(1,r+1)+1;
end
end
end
end
for k=1:m
for l=1:n
for r=0:255
if(ref_img(k,l)==r)
pdf_ref(1,r+1)=pdf(1,r+1)+1;
end
end
end
end
sum=0;
for i=1:256
sum=sum+pdf_main(1,i);
cdf_main(1,i)=sum;
end
sum=0;
for i=1:256
sum=sum+pdf_ref(1,i);
cdf_ref(1,i)=sum;
end
for i=1:256
for j=1:256
if cdf_main(1,i)==cdf_ref(1,j)
k=j;
break;
else if cdf_main(1,i)< cdf_ref(1,j)
k=j-1;
break;
end
end
end
tmp(1,i)=k;
end
for i=1:m
for j=1:n
for u=1:256
if input_img(i,j)== u
final_img(i,j)=tmp(1,u);
break;
end
end
end
end
subplot(3,3,1);
imshow(input_img);
title('Input image');
subplot(3,3,2);
plot(pdf_main);
title('PDF Input');
subplot(3,3,3);
plot(cdf_main);
title('CDF Input');
subplot(3,3,4);
imshow(ref_img);
title('Reference image');
subplot(3,3,5);
plot(pdf_ref);
title('PDF Reference');
subplot(3,3,6);
plot(cdf_ref);
title('CDF Reference');
subplot(3,3,7);
imshow(final_img);
title('Final image');
subplot(3,3,8);
plot(tmp);
title('Transformation function');
[MATLAB] Histogram Equalization program
final_img=imread('fig3.jpg');
input_img=imread('fig3.jpg');
[m n]=size(input_img);
mn=m*n;
pdf=zeros(1,256);
cdf=zeros(1,256);
tmp=zeros(1,256);
final=zeros(m,n);
%a=0;
%b=0;
for k=1:m
for l=1:n
for r=0:255
if(input_img(k,l)==r)
pdf(1,r+1)=pdf(1,r+1)+1;
end
end
end
end
sum=0;
for i=1:256
sum=sum+pdf(1,i);
cdf(1,i)=sum;
end
for i=1:256
tmp(1,i)=floor((cdf(1,i)/(mn))*255);
end
for i=1:m
for j=1:n
for k=0:255
if input_img(i,j)==k
break;
end
end
final_img(i,j)=tmp(1,k+1);
end
end
subplot(2,2,1);
imshow(input_img);
title('Input image');
subplot(2,2,2);
plot(pdf);
title('PDF');
subplot(2,2,3);
imshow(final_img);
title('Equalized image');
subplot(2,2,4);
plot(cdf);
title('CDF');
[MATLAB] Gamma,Log and Negetive Trasformation Code
log_input=imread('fig3.jpg');
gamma_input=imread('fig6.jpg');
neg_input=imread('fig5.jpg');
%img=rgb2gray(inpt);
%imview(img);
[m n]=size(log_input);
[o p]=size(gamma_input);
[q r]=size(neg_input);
log_opt=zeros(m,n);
gamma_opt=zeros(o,p);
neg_opt=zeros(q,r);
for k=1:m
for l=1:n
log_opt(k,l)=30*log(double(log_input(k,l)));
end
end
for k=1:o
for l=1:p
gamma_opt(k,l)=0.6*power(double(gamma_input(k,l)),0.98);
end
end
for k=1:q
for l=1:r
neg_opt(k,l)=255-neg_input(k,l);
end
end
subplot(3,2,1);
imshow(uint8(log_input));
title('Original image');
subplot(3,2,2);
imshow(uint8(log_opt));
title('Log Transformation');
subplot(3,2,3);
imshow(uint8(gamma_input));
title('Original image');
subplot(3,2,4);
imshow(uint8(gamma_opt));
title('Gamma Transformation');
subplot(3,2,5);
imshow(uint8(neg_input));
title('Original image');
subplot(3,2,6);
imshow(uint8(neg_opt));
title('Negetive Transformation');
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