Thursday, February 27, 2020

Basic elements of a photo Essay Example | Topics and Well Written Essays - 1500 words

Basic elements of a photo - Essay Example Successful images depend on the basic elements of a photo that helps create emphasize about different aspects in the photo that the photographer wanted to bring forward. The main tools of a photo are line, form, design, shape, color, depth, lighting and symmetry. The photographer may pay attention to some of these elements depending on what he or she wants to emphasize. The picture does not necessarily need to include all these tools but can include one or two depending on the intentions of the photographer (Bowden 15).The above image employs particular elements of a picture that focuses the attention of the viewer to the main point that the photographer was bringing forward. The most vivid element is the symmetry, where the road is placed at the middle of the photo. A part from the road being at the central of the image, symmetry is brought about by the middle of the road that runs at the middle of the tarmac road dividing it into two halves. The use of symmetry helps to create stri king photos and create points of interest (Bowden 18). The other tool seen in the above photo is lines, which run through the tarmac road. The other lines are on side in the farms on both sides of the road. Lines help create a form of a picture that, in turn, brings about the body of the image. The lines above are horizontal, which brings about a feeling of restfulness, stability and permanency.Most photos have an aspect of color and the above photo is not an exceptional.

Tuesday, February 11, 2020

Biopsychology Essay Example | Topics and Well Written Essays - 1500 words

Biopsychology - Essay Example For they become colourd by reflecting the Light of their own Colours more copiously, and that of all other colors more sparingly." (Opticks, Book I, Part II, Experiment 15)    Generally, colour vision is merely a physical ability of an organism or human being. A colour is perceived by the human eye as a combination of different wavelengths. The ability of humans to distinguish colours is an interesting question, which has been discussed by scientists for many years. Thus, a number of theories have been created. These theories will be discussed in the present paper. According to Peter Gouras â€Å"color vision is an illusion created by the interactions of billions of neurons in our brain. There is no color in the external world; it is created by neural programs and projected onto the outer world we see. It is intimately linked to the perception of form where color facilitates detecting borders of objects† (Gouras , 1969). There are two main theories explaining the ability of humans to distinguish colours: trichromatic colour vision and opponent process theory. The researches devoted to the development of trichomatic colour vision were initiated in 18th century by Thomas Young. This scientist claimed that human vision is caused by interaction of three different kinds of photoreceptor cells. Later on, claims of this scientist were experimentally proven by Hermann von Helmholtz. Therefore it was proven that a human required 3 wavelengths in order to distinguish all colours. More detailed discussion of this theory requires additional facts. There are 3 kinds of cones in the retina of the eye; each of these 3 cones has various photosensitive pigments. Different kind of pigment is sensitive to different light wavelength. Cones are of three different types: long, medium and small, ranging from 560 nm to 420 nm respectively (Dacey,