?
Solved

Simple Desktop Application for projecting RGB values from an image

Posted on 2008-10-03
6
Medium Priority
?
846 Views
Last Modified: 2013-12-14
I have  a programming trouble can you help me with this ?
 
I need a small graphical user interface which asks for a input which is an image (jpeg or bmp) and we need to supply it with an image.
It would calculate the RGB values for all the pixels and average (Some kind of mean; purpose is to confirm with an uniform value) and
it would look up in a table (the type of table is up to us it can be a text based, two coloumn or a comma separated file what ever)
and project the value(float or int) as the output.

Any idea or help
0
Comment
Question by:thirst4truth
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
6 Comments
 
LVL 2

Assisted Solution

by:jvulliet
jvulliet earned 1600 total points
ID: 22638579
Hello,

are you in unmanaged C++ or managed C++ (.NET)?

If you are in C++ .NET check the following code snippet to calculate average of image.
 OpenFileDialog^ odlg = gcnew OpenFileDialog();
 odlg->Filter = "Image Files|*.bmp;*.jpg";
 if (odlg->ShowDialog() == System::Windows::Forms::DialogResult::OK) 
 {
	 System::Drawing::Bitmap bitmap = gcnew System::Drawing::Bitmap(odlg->FileName);
	 long sumr = 0;
	 long sumg = 0;
	 long sumb = 0;
	 
	 for (int i = 0; i < bitmap.Width;i++) 
	 {
		 for (int j = 0; j < bitmap.Height; j++) 
		 {
			 Color color = bitmap.GetPixel(i,j);
			 
			 //Process the pixel here
			 Byte r = color.R;
			 Byte g = color.G;
			 Byte b = color.B;
 
			 sumr += r;
			 sumg += g;
			 sumb += b;
		 }
	 }
 
	 long totalpixel = bitmap.Width * bitmap.Height;
	 Byte avgred = Convert::ToByte(sumr / totalpixel);
	 Byte avggreen = Convert::ToByte(sumg / totalpixel);
	 Byte avgblue = Convert::ToByte(sumb / totalpixel);
 }

Open in new window

0
 

Author Comment

by:thirst4truth
ID: 22639530
I am using un managed c++ then.

Well how to complie this peice of code?

How to give image as an input?
0
 
LVL 2

Assisted Solution

by:jvulliet
jvulliet earned 1600 total points
ID: 22640894
Just to know, which compiler and development environment are you using?

and what api are you using for user interface as well (MFC, Qt, Gtk...)?
Some of those have built in classes for images.
0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Author Comment

by:thirst4truth
ID: 22641334
Iam using visual studio to complie it.

i dont know abt api

sorry for i have only intermediate knowledge in this subject
0
 
LVL 2

Assisted Solution

by:jvulliet
jvulliet earned 1600 total points
ID: 22658553
Which version of visual studio (6.0, 2003, 2005, 2008) are you using?

If you show me a little code example you use just to create a form I should be able to see which api you use (considering you use visual studio should be mfc or winforms, but just to make sure), then make you a little project which works.
0
 

Accepted Solution

by:
thirst4truth earned 0 total points
ID: 22678155
Hello jvulliet

   i attached a screen shot of what i am using
as far as i know it is : Microsoft Visual Studio Express Edition 2008

thank You
cpp.JPG
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article provides the solution to a question (http://www.experts-exchange.com/Software/Photos_Graphics/Images_and_Photos/Q_28674207.html) posed here at Experts Exchange. The asker of the question has many JPG images in many folders, and all of t…
Use email signature images to promote corporate certifications and industry awards.
The viewer will learn how to synchronize PHP projects with a remote server in NetBeans IDE 8.0 for Windows.
This video Micro Tutorial shows how to password-protect PDF files with free software. Many software products can do this, such as Adobe Acrobat (but not Adobe Reader), Nuance PaperPort, and Nuance Power PDF, but they are not free products. This vide…
Suggested Courses

765 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question