Chapter 1
Introduction
Digital photography is a form of photography that uses cameras containing arrays of electronic photodetectors to capture images focused by a lens, as opposed to an exposure on photographic film. Here images are captured and stored in file for further processing. Digital photography aims to produce an image that gives an illusion of a real environmental image.
Inorder to produce an image that provides visual richness and sets the mood of the environment the important parameter that is considered is lightning. The subtlest nuances are often found in low-light conditions. While capturing images in low light environment, the photographer faces some problems called as digital photography artifacts. Digital artifacts are any unwanted changes that occur in an image that are caused by various factors within a digital camera. To overcome these artifacts one option is to set a long exposure time so that the camera can collect enough light to produce a visible image. However, camera shake or scene motion during such long exposures will result in motion blurriness. Another option …show more content…
The light rays that fall on the retina converts the light rays into the electronic pulse. This electronic pulse travel to the brain through the optic nerve inorder to create a visual image. The working of the eye is same as that of the camera lens. Light enters the clear covering of the eye like the glass of a camera lens and the pupil controls the amount of light that travels through the eye like a camera aperture. The incoming light is captured by the retina and the record is sent to the brain just like the camera film. Due to the rich blood supply of the choroid eyes appears to be red as a layer of connective tissues is present at the back of the eye which helps in the nourishment of the retina and gives a normal red
Introduction
Digital photography is a form of photography that uses cameras containing arrays of electronic photodetectors to capture images focused by a lens, as opposed to an exposure on photographic film. Here images are captured and stored in file for further processing. Digital photography aims to produce an image that gives an illusion of a real environmental image.
Inorder to produce an image that provides visual richness and sets the mood of the environment the important parameter that is considered is lightning. The subtlest nuances are often found in low-light conditions. While capturing images in low light environment, the photographer faces some problems called as digital photography artifacts. Digital artifacts are any unwanted changes that occur in an image that are caused by various factors within a digital camera. To overcome these artifacts one option is to set a long exposure time so that the camera can collect enough light to produce a visible image. However, camera shake or scene motion during such long exposures will result in motion blurriness. Another option …show more content…
The light rays that fall on the retina converts the light rays into the electronic pulse. This electronic pulse travel to the brain through the optic nerve inorder to create a visual image. The working of the eye is same as that of the camera lens. Light enters the clear covering of the eye like the glass of a camera lens and the pupil controls the amount of light that travels through the eye like a camera aperture. The incoming light is captured by the retina and the record is sent to the brain just like the camera film. Due to the rich blood supply of the choroid eyes appears to be red as a layer of connective tissues is present at the back of the eye which helps in the nourishment of the retina and gives a normal red