Color histogram, Computer Graphics

A color histogram is a representation of the distribution of colors in an image. For digital images, a color histogram represents the number of pixels that have colors in each of a fixed list of color ranges (the set of all possible colors).

A histogram consists of frequencies and discrete intervals of the same size (bins). The total area of the histogram is equal to the number of data. A histogram may also be normalized by dividing frequencies by the total number of data. In this case, the total area of the normalized histogram is equal to 3 (the area of each color component is normalized to 1). In this project, the normalized color histogram will be used because it can handle the images which differ in size. 
 
Typical number of bins in RGB color space

6 (=3*2),    12 (=3*22),   24 (=3*23),   48 (=3*24), 
96 (=3*25), 192 (=3*26), 384 (=3*27), 768 (=3*28)

For instance, an image (which category is “Strawberry”) consists of 10 pixels as follows

1087_Color Histogram.png

Posted Date: 3/20/2013 2:28:06 AM | Location : United States







Related Discussions:- Color histogram, Assignment Help, Ask Question on Color histogram, Get Answer, Expert's Help, Color histogram Discussions

Write discussion on Color histogram
Your posts are moderated
Related Questions
1. If you perform a x-direction shear transformation and then a y-direction shear transformation, will the result be the same as the one which is obtained when it is simultaneous s

Basic Ray Tracing Algorithm - Polygon Rendering The Hidden-surface removal is the most complete and most versatile method for display of objects in a realistic fashion. The co

Problem: (a) What is meant by ‘Time - Stretching ‘in relation to a sound data file? (b) Calculate the size of a 5 minutes mono sound file of CD quality and with a 16 -bit

a__________of a scene is apart of a scene by which relate one part of the scene with the other parts of the scene

Question: (a) Describe in details the meaning of the following terms often available in drawing tools: (i) Welding objects; (ii) Trimming objects; (iii) Intersecting obje

Constant intensity shading OR Flat shading  In this technique particular intensity is calculated for each polygon surface that is all points that lie upon the surface of the

Define Affine transformation?  A coordinate transformation of the form X= axxx +axyy+bx, y 'ayxx+ayy y+by  is known as a two-dimensional affine transformation. Every of the tra

Q.   Explain the concept of area subdivision method. Write the conditions, when no further subdivision is needed and how we can test these condition. Ans. Area Subdivision Th

Construction of a Solid with a Translational Sweep Figure demonstrates construction of a solid along with a translational sweep. Translating the control points of the periodic

Types of Basic Tools Different types of basic tools for creating and editing multimedia components are: Drawing and Painting tools Image editing tools OCR softwar