Computer graphics

Every day I check my Instagram and Facebook to see what my friends have posted. The posts of pictures I see are what I use to interpret what I think about that person. I make assumptions and conclude a lot from a single photo. However, what I perceive is not always the truth about that given situation or person. People post certain pictures for a reason. That picture meant something to them. They wanted others to view it, therefore they posted it. Are they posting these pictures to convince…

will realise the designer lust for the tool. A good masking defines good and efficient editing. Importance of Masking Masking, for a graphic designer is something like water and oxygen for life. Most of the wedding albums and other edited images follow use of this tool. The tool has several benefits of itself over other methods of creating the same effect. A great graphic designer once said “Worth doing things in life need layer masks almost all the time”. This shows the love of designers for…

Introduction In color reproduction, gamut or the color gamut is a certain complete subset of colors, which can be accurately represented in a given circumstance such as given color space [1]. In another words gamut literally means the total range of possibilities that can be accomplished from red, green and blue (RGB) for a particular device [2]. If certain color cannot be reproduced accurately there is a way how to calculate the color difference by adequately describing the color by numerical…

Every day, an image saves someone’s life. How? A diagnostic image can provide doctors with knowledge about a patient’s health. Images are an innovation that has changed the way people live, not only in the health industry but in their personal life, too. They allow people to capture memories and share their experiences with others. Digital and diagnostic are two types of images; diagnostic images are used by doctors while digital images are used by most people. The two types of images are…

technology, animators are in high demand. According to Learn.org, job growth is expected to be around 6% from 2014 to 2024, which is in line with most careers(Learn.org). Demand for animators will continue to increase, especially as effects and computer graphics are expected to become increasingly detailed. To achieve this, talented artists who can keep up with the fast pace of technology changes are needed. Employment…

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…

1. ABSTRACT The essence of an image is a projection from a 3D scene onto a 2D plane, during which the depth information is lost. The 3D point corresponding to a specific image point is constrained to be on the line of sight. From a single image, it is very difficult to determine the depth information of various object points in an image. If two or more 2D images are used, then the relative depth point of the image points can be calculated which can be further used to reconstruct the 3D image by…

compress the light and have it appear on the final processed photo or computer in the same manner the eyes sees it. According to Photography.TutPlus, a good digital camera can capture a dynamic range in the ratio of 1,000:1, unlike the human eye, which can see a scene with 10,000:1. This means the human eye is much more capable of capturing wide variety of brightness compared to the camera. Depending on your preference, a computer editing software such as Photoshop, Lightroom and Photomatix Pro…

Factor graph: A factor graph is a type of probabilistic graphical model. A factor graph has two types of nodes: Variables, which can be either evidence variables when their value is known, or query variables when their value should be predicted. Factors, which define the relationships between variables in the graph. Fig. 2.13 shows an example of factor graph. Figure 2.13: An example of factor graph In belief propagation (BP), the variables mij(xj) are considered to be as a “message” from a…

This step completes the segmentation removing static objects from the grayscale images $T_i$ using Eigen-Background decomposition. First, each image $T_i \in \mathbb{R}^{n_x\times n_y} $ is reshaped into a column vector $I_i \in \mathbb{R}^{n_p\times 1}$. These $n_t$ vectors become the $i-th$ column of a video matrix $A(n_p\, , \, n_t)$, after having removed the average image: \begin{equation} A_{(n_s \times n_t)}=\begin{pmatrix} \hat{I}_1 & \hat{I}_2 & \cdots & \hat{I}_{n_t}…