|
|
 |
|
Digital Camera Interpolation Explained
In a device such as a digital camera it is very important to understand the very basic aspects of the device so as to properly operate it and give it the due respect it deserves. Such a topic is interpolation! These are accessories that help the digital camera to perform the technologically advanced features that it is capable of. In extreme explanatory and simple terms it can be summed up as that interpolation refers to software programs that can effectively enlarge image resolution beyond the actual resolution by adding extra pixels using complex mathematic calculations. Now, this is a feature that can be absolutely useful in providing a good success to a user. Looking into the technical aspects it can be stated that interpolation is a technique where the spatial resolution of an image is increased from its original size to a higher or larger resolution. The spatial resolution of an image is simply its horizontal x vertical pixel count. For example 1600 x 1200. Again getting into further intricate details it can be stated that there are two techniques of interpolation commonly used, they are software and hardware. Again software interpolation can be performed on a digital image using a one of a number of image editing programs such as PhotoShop. This is often termed as resizing and is done with a computer, performed on an image file from a digital camera that already exists in a file format such as JPG. Hardware interpolation involves the resizing of an image, but it differs from software interpolation in that the image is resized algorithmically inside the camera during the image processing sequence and before the image has been saved as a JPG image file. Also, it can be noted here that JPG is a compressed image file format. Whenever a file is saved as a JPG file, image data is lost in the compression process. Image data is thrown away in exchange for file-size efficiency. Software interpolation is a process performed after the JPG losses have been applied. Hardware interpolation occurs inside the camera prior to JPG compression and before JPG losses have been applied. The resulting hardware interpolated images are of superior quality to a comparable image interpolated in software. These are basically the important points as discussed in the above lines regarding the digital camera interpolation. The explanation is worth for every user who can be a novice as well as an expert and thus uncovers another great feature of a digital camera, the process of interpolation. About The Author Jakob Jelling is the founder of http://www.snapjunky.com. Visit his digital camera guide and learn how to take better pictures with your digicam.
|
|
|
|
RELATED ARTICLES
Stitching Memories Sometimes, usual photographs look so common and boring. Converting your pictures into charcoal or oil painting is a welcome change but then, a lot of people have been into these crafts already that there are times when these portraits too, look clichéd. There could also be a time that a charcoal or oil painting of your photo does not look exactly the same as your original photograph. I have been a witness to several charcoal portraiture failure. Have you ever had your portrait done in charcoal in which the result didn't actually look like your image? The Alligator Farm - Home to Beautiful Winged Creatures Your first thought when you read "Alligator Farm" might be "tourist trap," but that could not be more inaccurate. And while the alligators are wonderful and plentiful at the place fondly referred to as the "Gator Farm," it is the birds that attract the world's best photographers. Disposable Underwater Cameras Disposable digital and film cameras (also called single-use cameras) provide a cheap and easy alternative for photographers. They offer an option for times when you don't want to risk your expensive equipment but you do want to take some photographs. For example, what could be a scarier combination for a photographer than an expensive piece of camera equipment and water? While professional underwater photographers (or serious hobbyists) are willing to spend a lot of money on their underwater cameras, what about the rest of us? Disposable underwater cameras offer an inexpensive alternative. After all, we may only want to take pictures one time on a snorkeling vacation. Why should we have to buy or rent a lot of expensive equipment? Extreme Digital Photography: Beyond Point-and-shoot When my old Olympus digital camera got broke while caving during a family camping trip, I had mixed feelings. For quite some time I had felt that the quality of some of my pictures was hampered by the limitations of that camera, but I did not look forward to spending the money on a new one. The Best Wildlife Camera To Take On Safari Good wildlife camera equipment on safari can make the difference between pictures you will be proud to show your friends and family when you get back and ones where it's difficult to figure out exactly what you were photographing because it's only a fuzzy black dot surrounded by green vegetation. Video Camcorder Formats and Media There are way too many tape, disk and stick formats out there: 7 Things You Must Do If You Want To Make That Perfect Camera Shot Saturate yourself with your subject and the camera will all but take you by the hand. Margaret Bourke-WhiteThese tips should help you relive those moments back where you've said "if only I had a camera." Now you will have it captured on film. These tips should help you to be camera ready. Choosing The Right Digital Camera Let's get something straight right out of the box. If you're looking to buy a new digital camera, you don't really have to be an expert in pixels and mega pixels and all that kind of stuff. If you expect to find that kind of deep technical discussion here, you're in the wrong place. Understanding Digital Photography Most serious photographers and all professionals use a Single Lens Reflex camera (SLR), the definition of an SLR camera is that the image is captured exactly as you see it in the viewfinder. However there are now two types of SLR the single lend reflex film (SLRF) and the single lens digital (SLD). They are both single lens camera, but digital does not use film and the resulting image can be processed at home with the aid of a photographic editor such as the chemical component in a traditional camera is film. When film is exposed to a real image, it makes a chemical record of the pattern of light, coming through the lens. Film has a collection of light sensitive frames, suspended on a strip of plastic. Colour film has three different layers of light sensitive material, which respond to red, green and blue (known as the (RBG) values. When the film is developed, it is exposed to chemicals, which dye the separate layers of film, into a color negative. All modern film is made up of silver halide crystals. Selecting Good Stock Photography in the Age of Digital The business of stock photography has drastically changed over the last few years. Ten years ago, selecting photographs for your brochure or newsletter meant spending hours pouring over stock photography catalogs and ordering photo research to find the exact image. When the order came in a giant overnight package, designers would spread transparencies out on the light table, squinting through a magnifying loop to check every detail. Getting the Most From Your Digital Camera Memory Card Imagine taking your new digital camera on a vacation and then realizing that you can barely click 20-30 images at a go. So, what do you do to avoid such a situation? The answer to this question lies in the purchase of an extra memory card or two. Is Digital Photography Expensive? Being such a fascinating device as the digital camera, this technological masterpiece is of course a precious and priced possession. And acquiring it also means that one time achievement feeling. Thus a person must also be very careful and at the time quite a little knowledgeable in order to make a good purchase and not lose a good bargain in the maze of soaring prices and mist of exaggerated cost myths. This discussion is again focused to pierce that mist and unravel that myth to reveal the truths and facts regarding the actual and economic cost of a digital camera! Photographing Kids Kids grow up so quickly and while we are often left with countless memories, most parents have only a drawer packed with school photos, blurry holiday snaps and the forced grin of the inevitable yearly birthday picture to account for the years gone by. It's time to stop bemoaning the latest photograph of your thumb obscuring your adorable baby and get on with improving your skills as a photographer. How to Buy the Right Digital Camera When buying a digital camera there are many things you should consider. First you should understand how a digital camera works. What you are using your digital camera for will help you decide what features to consider and how much you should spend. I am here to educate you and help you decide. Canadas Digital Cameras, Digital Camcorders and Cheap Memory Cards Canada Digital SLR Camera or Digital single-lens reflex (SLR) camera is an ideal camera for professionals and amateur photographers. They usually having interchangeable lenses and are known for capturing superior quality images. They come with many advanced features like megapixels, zoom, memory cards, batteries, comfort and more. One of the great appeals of digital is the ability to shoot in "raw" format. Passionate Organizing: How To Create A System To Organise Your Digital And Traditional Photos Digital photography promises much. Store your photographs on your computer, print them when you want, email them to friends and family ? share them to your heart's content. Couldn't be easier, could it? So how come that for most of us storing and sharing our photographs is a bit of a nightmare? Underwater Digital Cameras Underwater photography's is primarily focused towards entertaining and informing the people and the users themselves about what is happening in the world of under water with the aid of photography. The advent of digital cameras has opened up new horizons for such ventures. These digital cameras are not only handy and sleek but also they offer a spectral range of features that helps the underwater photographers in their work a lot. In this discussion these special features of underwater digital cameras are necessarily been revealed and done justice to! How To Avoid Or Reduce Red-Eye Photography with the aid of a digital camera is beyond doubt very fascinating. However, it also has many a nooks that the users of the digital camera must be aware of and also must be well educated to deal with in order to produce good photographs worth the most prized digital camera. Such a concept is that of the red eye! In order to understand what this red eye actually is, a little detailed introspection is necessary. Basically speaking red-eye is a function of at least three things, they are firstly, ambient level of light because stumpy light level causes the retina of the person to be photographed to open wider to admit more light thereby divulging open the iris, which is the primary part that reflects the red light hence giving the appearance of red eyes for the subjects. Also secondly the younger the person being photographed the wider remains the retina and hence the greater the effect of red eye in the picture. Thirdly, the reflection angle of the flash plays a vital role, as the light is recoiled back to the digital camera and the closer the incident light beam is to this reflected light beam, the greater becomes the red eye effect. To prevent this instruments such as flash brackets are useful to make the flash a bit removed from the propinquity of the lens. Thus the red eye effect is somewhat revealed till this part of this discussion. Now is the time to look into a greater detail in order to analyze the various aspects of the red eye effect and also find out ways of reducing the problem as far as possible. Wildlife Scouting Cameras For years I wondered how big the bucks were that were roaming our property in the dark of night. After all, I knew that monster bucks had to be eluding me during the daylight hours only to roam the woods at night. In an attempt to reveal these mysterious nocturnal monsters I purchased a scouting camera in 1996. Christmas Rush this Holiday Season to go to Digital Photography So you have rushed out into the malls in a mad panic for this christmas holiday and are going to purchase a electronic item on Credit think again. Consumers are paying again through the nose agin this year 1.5 billion in sales up from last year and sure to gain ground next year again.
|
| home | site map |
| © 2005 |