Slow SetPixel performance

by: timeash | last post by:

The code below subtracts two images from one another and determines if there is any new things in the picture. A large enough color change will "register" a pixel. The pixel is then plotted using...

Visual Basic 4 / 5 / 6

Virtual Primary Key = Slow

by: Neil | last post by:

I've been discussing here a SQL 7 view which scrolls slowly when linked to an Access 2000 MDB. After trying various things, I've distilled it down to the following: when the linked view has a...

Microsoft SQL Server

Slow SetPixel performance

by: Peter | last post by:

Hi, I found the SetPixel performance is very poor. it took lots of time to twist dots for a large image. I wonder if there is any other way to speed it up. Thanks. Peter ...

C# / C Sharp

ArgumentException: Invalid parameter used at Bitmap.SetPixel

by: halise | last post by:

Hi, i am in trouble with an exception in .net platform with c#. The exception thrown is exactly as follows: System.ArgumentException: Invalid parameter used. at...

C# / C Sharp

Slow Performance on myTable.Rows.Add(newRow)

by: jdipalmajr | last post by:

I am using a strongly typed dataset with a design time schema. I load data into the dataset tables from xml. The problem I am having is after the XML load. The first time I Add a row to a table...

C# / C Sharp

SetPixel and colors

by: mark | last post by:

Somebody can explain me why if I put a color with SetPixel the color showed is of another value? For example: I've to draw a grayscale image. The color RGB(90,90,90) become RGB(40,45,60). In the...

.NET Framework

Despeckle code too slow

by: Celarian | last post by:

I've written a function, Despeckle, to remove noise from Bitmaps. The English description of the algorithm I've implemented might read as follows: For each pixel in the image, create an array...

Visual Basic .NET

why this program run so slow??

by: xhy_China | last post by:

I wrote a program to convert a bitmap to gray(in c#) . But why it runs so slow?? More slower than I wrote in Delphi?? They have the same algorithm. Bitmap openBitmap = new...

C# / C Sharp

SetPixel Issue

by: tamasumalta | last post by:

I would like to change some pixels inside a particular gif file. I tried using the setpixel and noticed that it is not compatible with indexed images. Then I converted the file from a gif to a bmp...

Visual Basic .NET

Easy Steps to Fix "Canon Printer Won't Connect to WiFi Network"

by: taylorcarr | last post by:

A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...

General

How to turn on java script in a villaon keypad mobile phone

by: Charles Arthur | last post by:

How do i turn on java script on a villaon, callus and itel keypad mobile phone

Java

Basic Javascript concepts

by: aa123db | last post by:

Variable and constants Use var or let for variables and const fror constants. Var foo ='bar'; Let foo ='bar';const baz ='bar'; Functions function $name$ ($parameters$) { } ...

Javascript

Navigating the Data Structures and Algorithms (DSA)

by: BarryA | last post by:

What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...

Algorithms / Advanced Math

Is that possible of reading the .csv file in column wise and the column have different lengths ?

by: Sonnysonu | last post by:

This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...

C / C++

How to build RAID in BIOS?

by: Hystou | last post by:

There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...

Computer Hardware

What is ONU?

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,...

General

Changing the language in Windows 10

by: Hystou | last post by:

Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...

Windows Server

Problem With Comparison Operator <=> in G++

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,...

C / C++

Slow SetPixel performance

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