Team Foundation Server Hosting
Skip Navigation Links
C# Corner Home
Forum Home
Latest 50
Unanswered
Win Prizes
All Time Leaders
Jump to CategoryExpand Jump to Category
Login 
    Welcome Guest!
 Search Forum For :  
X
 Login
Please login to submit a new post, reply and edit exiting posts, see user profiles, and access more features. If you are not a registered member, Register here.
User Id / Email:
Password:  
Forgot Password | Forgot UserName
   Home » C# Language » Trouble to get pixel from 1024x768 image
       
Author Reply
Tanmay Sarkar
posted 194 posts
since May 28, 2010 
from India

Trouble to get pixel from 1024x768 image

  Posted on: 09 Sep 2010       
If i simple want to add color value in richtextbox for small image like 250x250 then it well work,

 richTextBox1.Text = "";
Bitmap objBitmap = new Bitmap(pictureBox1.Image);
String info = "";
for (int y = 0; y < objBitmap.Height; y++)
{
for (int x = 0; x < objBitmap.Width; x++)
{
Color col = objBitmap.GetPixel(x, y);
info = info + Convert.ToString(col.R) + "\t" + Convert.ToString(col.G) + "\t" + Convert.ToString(col.B) + Environment.NewLine;
}
}
richTextBox1.Text ="R\tG\tB"+Environment.NewLine+ info;

but for huge size like 1024x768 it take too much time & if there was too many application run then it became hang.

Please help me to retrieve all the pixel value from a 1024x768 image in short time span.

Thank you in advance!
Tanmay Sarkar
Bechir Bejaoui
posted  1450 posts
since  Dec 06, 2007 
from 

 Re: Trouble to get pixel from 1024x768 image
  Posted on: 11 Sep 2010   Accepted Answer     0  

Hi
For the long tasks it is recommended to use a separate thread or threads
Every one among us was a beginner once.
http://dotnetuniver.blogspot.com/
krishna v
posted  16 posts
since  Feb 08, 2006 
from 

 Re: Trouble to get pixel from 1024x768 image
  Posted on: 11 Sep 2010        0  

If you really want to read the pixel data inside bitmap.. read the rgb data from the underlying file stream rather using GetPixel

 

Tanmay Sarkar
posted  194 posts
since  May 28, 2010 
from  India

 Re: Trouble to get pixel from 1024x768 image
  Posted on: 11 Sep 2010        0  
Thanks Bechir Bejaoui. to implement your idea,now i reduce 50% time. hope i reduce more, to increment number of threads.

Thank you!
Tanmay Sarkar
Bechir Bejaoui
posted  1450 posts
since  Dec 06, 2007 
from 

 Re: Trouble to get pixel from 1024x768 image
  Posted on: 12 Sep 2010        0  

You're welcome
Every one among us was a beginner once.
http://dotnetuniver.blogspot.com/
       
Discover the top 5 tips for understanding .NET Interop
Dynamic PDF
ceTE software specializes in components for dynamic PDF generation and manipulation. The DynamicPDF™ product line allows you to dynamically generate PDF documents, merge PDF documents and new content to existing PDF documents from within your applications. Visit DynamicPDF here
Discover the Top 5 .NET Memory Management Fundamentals
To write the best .NET code, you need to know exactly how the .NET framework really manages memory. Ricky Leeks presents the Top 5 fundamental facts of .NET memory management. Learn more.
Introducing MaxV - one click. infinite control. Hyper-V Hosting from MaximumASP.
Finally – a virtual platform that delivers next-generation Windows Server 2008 Hyper-V virtualization technology from a managed hosting partner you can truly depend on. Visit www.maximumasp.com/max for a FREE 30 day trial. Hurry offer ends soon. Climb aboard the MaxV platform and take advantage of High Availability, Intelligent Monitoring, Recurrent Backups, and Scalability – with no hassle or hidden fees. As a managed hosting partner focused solely on Microsoft technologies since 2000, MaximumASP is uniquely qualified to provide the superior support that our business is built on. Unparalleled expertise with Microsoft technologies lead to working directly with Microsoft as first to offer IIS 7 and SQL 2008 betas in a hosted environment; partnering in the Go Live Program for Hyper-V; and product co-launches built on WS 2008 with Hyper-V technology.
Nevron Chart for .NET 2010.1 Now Available
The leading .NET charting control now features PDF, Flash and Silverlight export, visualization of large datasets and more. Deliver true charting functionality to your BI, Scorecard, Presentation or Scientific apps. Download evaluation now.
ASP.NET 4 Hosting
Get 2 Months Free of ASP.NET Hosting for Only $4.95/month! Receive FREE MS SQL and MySQL Databases Including ASP.NET 4/3.5, MVC 3.0, Silverlight 4, Windows 2008/IIS 7.0 Plus FREE IIS 7 Modules. Host UNLIMITED ASP.NET Web Sites – Click Here!
Discover the top 5 tips for understanding .NET Interop
 Hosted by MaximumASP  |  Found a broken link?  |  Contact Us  |  Terms & conditions  |  Privacy Policy  |  Site Map  |  Advertise with us
Current Version: 5.2011.3.12
 © 1999 - 2012  Mindcracker LLC. All Rights Reserved