473,756 Members | 3,663 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Converting byte array for 8-bit grayscale image into GIF

I have a one dimensional byte array that stores the pixel information
of my image. The image is 8-bit grayscale so each byte in the array
holds a value from 0(black) to 255(white) for a single pixel. I need
a way to save this this byte array as a gif. Does anyone have any
suggestions???
Jul 17 '05 #1
0 3864

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

4
10309
by: Hal Vaughan | last post by:
If I have a byte and I convert it to string (String sData = new String(byte bData), then convert it back (byte bData = sData.getBytes()), will all data be intact, or do Strings have problems with bytes that are not printable characters? I've tested this and it seems to work fine, but I want to make sure there isn't some condition or situation I'm not aware of that could cause problems. I'm doing this because it's easier to do some of my...
4
16469
by: Joseph Suprenant | last post by:
I have an array of unsigned chars and i would like them converted to an array of ints. What is the best way to do this? Using RedHat 7.3 on an Intel Pentium 4 machine. Having trouble here, hope someone can help Thanks
2
407
by: Tomas Deman | last post by:
Hi, I need a fast method for converting an int array to a byte array. At the moment, I'm using this: public static byte Int2ByteArray(int array) { byte lbytRetval = new byte; int lintIdxHi; int lintIdxLo; for (int i = 0; i < array.GetLength(0); i++)
4
5397
by: Prabhu | last post by:
Hi, We are having problem in converting a byte array to string, The byte array has char(174), char(175), char(240), char(242) and char(247) as delimiters for the message. when we use "System.Text.Encoding.ASCII.GetString(bytearray)" of .Net library, we found that the char (delimiters) specified above are replaced with different char.
1
12529
by: Darrel | last post by:
I am using binary writer to write an array of bytes to disk. However, my data starts out as an array of sbytes. I am currently type casting each array element in a for loop. Is there a faster method for converting an array of sbytes to an array of bytes? Thanks, Darrel
2
7374
by: Matt | last post by:
I just wanted to know if I am converting to/from streams the easiest and correct way. I am performing the following statements to convert byte arrays to and from streams during different processing in my application: Here is a sample where I convert from a stream to a byte array: strm = mqMsg.BodyStream; BinaryReader br = new BinaryReader(strm); byteArray= br.ReadBytes(Convert.ToInt32(strm.Length));
5
4187
by: David | last post by:
I note that you can null teminate a string by adding controlchar.null. Is there a way of adding a null to a Buffer of Bytes and converting it to a string. I have packets coming in from a serial ports as bytes and some of these represent strings. (Like the Packed BCD date/time stamp etc). At present I read through each Byte and convert to char and append to a string.
8
4201
by: moondaddy | last post by:
I need to convert a byte array to a string and pass it as a parameter in a URL and then convert it back to the original byte array. However, its getting scrambled in the conversion. In short, here's the code: ====================================== Dim textConverter As New ASCIIEncoding Dim sParam As String = "This is my cool param" Dim bytParam() As Byte 'load the byte array here...
16
5447
by: manmit.walia | last post by:
Hello All, I have tried multiple online tools to convert an VB6 (bas) file to VB.NET file and no luck. I was hoping that someone could help me covert this. I am new to the .NET world and still learning all help would be greatly apperciated. Attribute VB_Name = "Module1" Option Explicit
6
8398
by: ogtheterror | last post by:
Hi I have a very limited understanding of Python and have given this the best shot i have but still have not been able to get it working. Is there anyone that knows how to get this into a .net assembly? _________________________________________________________ def encrypt_password(challenge, password): if challenge == 'md5': inner = md5(challenge + password).hexdigest() elif challenge == 'sha1': inner =...
0
9456
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
10032
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
9872
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
9841
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
8712
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
1
7244
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
6534
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
5303
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
2
3358
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.