A white domestic cat’s photo with red-eye effect (not the natural color of its eyes), wallpaper size: 1280 x 960

This is a picture of a beautiful white cat lazing on a pair of blue jeans carelessly thrown on the floor carpet. Those who have observed the habits of domestic cat know that they may choose the cleanest and the softest of the cloths, bed spreads, etc. to take rest or to sleep on. So, this cat had two choices, one is to laze on the carpet, and it needed the denim, and it just pulled it down. So, the clothing is not carelessly thrown there.

The other choice the cat did not have is the opportunity to avoid being photographed. And the chance it did not give the photographer is to photograph it without the much malice-stricken “red-eye effect”. So, the cat’s eyes are just normal, but in the photograph, it has red eyes.

The red-eye effect is a very common occurrence in photography, especially when compact cameras are used. It also happens when the photographic flash is very close to the lens in the case of better or larger cameras.

Red-eye effect occurs when the flash falls too fast for the pupil of the eyes to close and the blinding flash passes through the pupil and reflects back from the fundus of the eye that includes the optic disc, retina, and posterior pole. The camera records the reflected light that carries the red color of the blood in the choroid behind the retina. The eye also has several photo-sensitive pigments that absorb the lower wavelength components of light such as violet, indigo, blue, etc. and reflects higher wavelength components such as orange and red. This also contributes to the red-eye effect in photography.

However, red-eye effect in photos can be rectified using photo-editing software such as Adobe Photoshop, Apple iPhoto, Corel Photo-Paint, GIMP, Google Picasa, and Paint.NET, etc.