Tag Archives: photography

My two favorite editing apps….greats filters

Two of my favorite phot editing apps are Instagram and Photo Editor by Aviary. I love all the filters they provide. They are available on IPhone and Android. You can turn dull pics into awesome pics. You can turn good pics into better pics. You can make pics look funky and wild, even futuristic with filters. There are endless possibilities. It’s a must have.

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What is a Pixel

In digital imaging, a pixel, or pel,[1] (picture element[2]) is a physical point in a raster image, or the smallest addressable element in a display device; so it is the smallest controllable element of a picture represented on the screen. The address of a pixel corresponds to its physical coordinates. LCD pixels are manufactured in a two-dimensional grid, and are often represented using dots or squares, but CRT pixels correspond to their timing mechanisms and sweep rates.
Each pixel is a sample of an original image; more samples typically provide more accurate representations of the original. The intensity of each pixel is variable. In color image systems, a color is typically represented by three or four component intensities such as red, green, and blue, or cyan, magenta, yellow, and black.
In some contexts (such as descriptions of camera sensors), the term pixel is used to refer to a single scalar element of a multi-component representation (more precisely called a photosite in the camera sensor context, although the neologism sensel is sometimes used to describe the elements of a digital camera’s sensor),[3] while in others the term may refer to the entire set of such component intensities for a spatial position. In color systems that use chroma subsampling, the multi-component concept of a pixel can become difficult to apply, since the intensity measures for the different color components correspond to different spatial areas in such a representation.
The word pixel is based on a contraction of pix (“pictures”) and el (for “element”); similar formations with el for “element” include the words voxel[4] and texel.[4]
Resolution of computer monitors
Computers can use pixels to display an image, often an abstract image that represents a GUI. The resolution of this image is called the display resolution and is determined by the video card of the computer. LCD monitors also use pixels to display an image, and have a native resolution. Each pixel is made up of triads, with the number of these triads determining the native resolution. On some CRT monitors, the beam sweep rate may be fixed, resulting in a fixed native resolution. Most CRT monitors do not have a fixed beam sweep rate, meaning they do not have a native resolution at all – instead they have a set of resolutions that are equally well supported. To produce the sharpest images possible on an LCD, the user must ensure the display resolution of the computer matches the native resolution of the monitor.
Resolution of telescopes
The pixel scale used in Astronomy is the angular distance between two objects on the sky that fall one pixel apart on the detector (CCD or Infrared Chip). The scale s measured in radians is the ratio of the pixel spacing p and focal length f of the preceding optics, s=p/f. (The focal length is the product of the focal ratio by the diameter of the associated lens or mirror.) Because p is usually expressed in units of arcseconds per pixel, because 1 radian equals 180/3.14159*3600=206,264 arcseconds, and because diameters are often given in millimeters and pixel sizes in micrometers which yields another factor of 1,000, the formula is often quoted as s=206p/f.

What is Digital photography

Digital photography uses an array of electronic photodetectors to capture the image focused by the lens, as opposed to an exposure on photographic film. The captured image is then digitzed and stored as a computer file ready for digital processing, viewing, digital publishing or printing.
Until the advent of such technology, photographs were made by exposing light sensitive photographic film, and used chemical photographic processing to develop and stabilize the image. By contrast, digital photographs can be displayed, printed, stored, manipulated, transmitted, and archived using digital and computer techniques, without chemical processing.
Digital photography is one of several forms of digital imaging. Digital images are also created by non-photographic equipment such as computer tomography scanners and radio telescopes. Digital images can also be made by scanning other photographic images.

What is photography?

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Photography
From Wikipedia, the free encyclopedia
“Photographic” redirects here. For other uses, see Photography (disambiguation).
Photography is the art, science and practice of creating durable images by recording light or other electromagnetic radiation, either chemically by means of a light-sensitive material such as photographic film, or electronically by means of an image sensor.[1] Typically, a lens is used to focus the light reflected or emitted from objects into a real image on the light-sensitive surface inside a camera during a timed exposure. The result in an electronic image sensor is an electrical charge at each pixel, which is electronically processed and stored in a digital image file for subsequent display or processing.
The result in a photographic emulsion is an invisible latent image, which is later chemically developed into a visible image, either negative or positive depending on the purpose of the photographic material and the method of processing. A negative image on film is traditionally used to photographically create a positive image on a paper base, known as a print, either by using an enlarger or by contact printing.
Photography has many uses for business, science, manufacturing (e.g. photolithography), art, and recreational purposes.

Hello world!

Welcome to Giraffes have spots too! I picked this name for two simple reasons….1. My son loved giraffes and they remind me of him, and 2. A Giraffes spots are as unique as you or I. My photos are unique as well. You can photograph the same object or scene more than once but ultimately no two photos are alike. That may sound corny, but hey…it’s true. I wanted a unique name for my site.I have been dabbling in photography and sketching for years but I never thought anyone would care to see my work. Also I’m not and expert in art or photography either so I get intimidated too. I now think my pics are worthy of the limelight so to speak. I’m no expert but I enjoy great pics and I’m getting better everyday at capturing great pics. I am always learning. I have an instagram account and an instacanvas account. I recently became obsessed with both. It’s given me an outlet that was much needed. Check out my instacanvas gallery http://instacanv.as/jezzka30.

I also have a blog about child loss and prematurity awareness……please check it out……http://saifsnicujourney.com

Thanks and stop back often for new content.