How Do Night Vision Goggles Work? by Ricky Lim
Ever wonder how do night vision goggles work ? How are they different from your daytime binoculars? Why it is always green color using night vision goggles? In this article, I will explain the inner working of night vision googles. The Image Intensifier Tube Night vision is only made possible... The energy charge will travel through the image intensifier and converts photons to electrons and strike a phosphor screen where the image is illuminated. ... Generation 3 night vision goggles are the most advanced with better image resolution and brightness and are considered even better than...

JPEG and GIF the Differences by Maricon Williams
JPEG and GIF image formats are both compression based formats. They are the most widely used and supported image formats for web. They take an uncompressed image such as bitmapped image and compress them to a smaller file size. A lot smaller image size is moreover the result of this conversion. ... It is the only alternative to make an image animated unless you want to use Flash. ... JPEG is a lossless method of compression or in common parlance, when the program that creates a GIF squashes the original image down to ensure not to lose any data.

The Basics and Benefits of Image Compression by Scott Heath
Thanks to technological advances and the advent of the internet, image files have become one of the most common file types to be used and shared today. But along with their convenience, image files are often large, making them difficult to store and transmit. ... Usually, lossless compression will be most effective on images with less color (such as a small image on a white background) as opposed to those with more color (such as a larger image with several shades of background color). ... While image compression does involve the removal of image data, it does not pose a risk to an image's...

Photomosaic Artistry by Paul Hood
DTG defines photo mosaics as photographic images or pictures made up of many, usually hundreds, of smaller photographic images. Viewed very closely, the small tile images can be recognized as individual photos, but at a distance, the composite of these images make up an entirely different image. ... William Hunt, considered as a photo mosaic guru presents these simple principles that are essential to creating good photo mosaics: (1) The large image MUST look good without too much jaggedness or color distortion.

How to Scan Images & Step by Christy Berger
Every scanner has different scanning instructions. However, the scanning process in general is similar. In this article, you will find all the information you need on how to scan images for different purposes. The useful scanning tips will help you get the maximum performance out of your scanner. ... File Formats TIFF (extension: tif): Used for high-resolution image to be printed GIF (extension: gif): Used for low-resolution web image, line art, or solid color JPEG (extension: jpg): Used for low-resolution web image or photograph Photoshop (extension: psd): Used for high-resolution...

Tips For Using Photoshop when Creating a Web Site by Gabriel J. Adams
Photoshop is a wonderful tool for creating web sites. It allows even a novice the ability to create a fully functional web site without much knowledge of HTML or JavaScript. You can create an entire web page template with Photoshop, and then use Image Ready to slice up the image and create the... You can draw a complete web site in Photoshop, and then transfer your image into Image Ready so that you can slice up the image into smaller elements, and then save the images and the corresponding HTML to render the page very easily.

How to Save an Image in a SQL Server Database? by Balaji B
Most of the web applications have a lot of images used in it. These images are usually stored in a web server folder and they are accessed by giving the relative path to the file with respect to the root folder of the website. .Net being the platform for distributed application now, ASP.Net can... // create a byte[] for the image file that is uploaded int imagelen = Upload.PostedFile.ContentLength; byte[] picbyte = new byte[imagelen]; Upload.PostedFile.InputStream.Read (picbyte, 0, imagelen); // Insert the image and image id into the database SqlConnection conn = new SqlConnection...

How to Remove Background from an Image in Photoshop by Gabriel J. Adams
If you have ever done any image editing in Photoshop, you know that one of the hardest things to do is to take an image out of its current background. I have a very easy way to do this, which is also very accurate in getting just the image that you would like to use. ... Photoshop will look at the image that you have copied on the clipboard, and size the new image to the same size as the image copied. ... This tool will select a section of an image based on the color of the image. ... You want to click on the image to make the first selection, and then hold down the shift key while...

Large Format Scanners by Damian Sofsian
It is generally accepted that the future of both storage and printing is digital. In case of text, it means scanning followed by conversion using optical character recognition. The development of large format scanners was impelled by the need for converting large drawings and images into digital... Such scanners usually use several small format sensors to increase the format width and are available in color as well as black and white. ... A relatively new imaging technology using contact image sensors (CIS) is becoming popular for low-cost applications requiring less power and no warm-up.

Image Formats: GIF, JPEG, BMP by Stephen Hames
When browsing the internet you are likely to come across many different image formats. However, the most common formats are: CompuServe GIF, JPEG, and Bitmaps. CompuServe GIF GIF stands for Graphic Interchange Format and was standardized by CompuServe in 1987. ... The Bitmap format saves your image pixel for pixel, in other words, what ever you see on the screen before you save is what you see when you open the image again. ... JPEG's best feature is the compression, you can compact the image file to make it the size smaller (bytes).