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1 JPS [email protected]
DIGITAL IMAGE PROCESSINGUSING C
INTRODUCTION
If you are already an expert programmer of C and you are
merely
looking for some ideas or codes on how to process images then
this is
the right tutorial for you. If you are a beginner in C
programming then
you are recommended to more detailed tutorials or books.
Nevertheless,
we begin with some of the basics of C in this chapter.
In the entire tutorial including all chapters we will be using
Microsoft
Visual Studio 2010. Interestingly, C coding in MS Visual Studio
is not sostraight forward as the way it used to be in MS Visual
Studio 2006.
Therefore our first task would be to familiarize oneself with
Microsoft
Visual Studio 2010 and to learn the way to code, debug, compile
and
execute C programs.
CODING IN MICROSOFT VISUAL STUDIO 2010
Follow the steps below:
1. Install and open Microsoft Visual Studio 2010
2. Create a new project by clicking File > New >
Project
3. Select languageVisual C++
4. Within Visual C++ select tabWin32
5. Select project typeWin32 Console Application
6. EnterProject Name
7. SelectNext from dialog box
8. Select Console applicationon applications settings window
9. Uncheck Precompiled headeron applications settings window
10.Your C project is ready for coding
11. To start coding right click on the Source Files and add a
new
item
12. SelectC++ file to add, enter name of program
withextension.C13. Open your program and start coding
14. To compile and execute press F5
For illustration of steps see figures below.
CONTENTS
C-coding in MS VisualStudio 2010
Calculate the area oftriangle
Solve the quadraticequation
Calculate factorial of anumber
Accept characters andterminate program
Output arrays and pointervalues
Input values from externaltext file
Dynamic memoryallocation for calculations
CHAPTER -1: BASICS OF C-LANGUAGE
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printf("%d\t%d\t%d\t%d\t%d\t%d\n",arr[i],p1[i],*(p1+i),*p2,p2);p2++;
}}
Program to accept data from text file and to allocate and use
dynamic memory
#include#include
#include
double input(double *data, int n);double std_dev(double *data,
int n);
main(){
int n;double stand_dev;double *prt;printf("enter no of
elements\n");scanf("%d",&n);prt=malloc(sizeof(double)*n);
if(prt==NULL)
printf("not enough memory\n");
input(prt,n);stand_dev=std_dev(prt,n);printf("standard
deviation=%lf\n\n",stand_dev);
free(prt);}
double input(double *data, int n){
int i;printf("enter the values\n");for(i=0;i
