2 research outputs found
Texture image analysis and texture classification methods - A review
Tactile texture refers to the tangible feel of a surface and visual texture
refers to see the shape or contents of the image. In the image processing, the
texture can be defined as a function of spatial variation of the brightness
intensity of the pixels. Texture is the main term used to define objects or
concepts of a given image. Texture analysis plays an important role in computer
vision cases such as object recognition, surface defect detection, pattern
recognition, medical image analysis, etc. Since now many approaches have been
proposed to describe texture images accurately. Texture analysis methods
usually are classified into four categories: statistical methods, structural,
model-based and transform-based methods. This paper discusses the various
methods used for texture or analysis in details. New researches shows the power
of combinational methods for texture analysis, which can't be in specific
category. This paper provides a review on well known combinational methods in a
specific section with details. This paper counts advantages and disadvantages
of well-known texture image descriptors in the result part. Main focus in all
of the survived methods is on discrimination performance, computational
complexity and resistance to challenges such as noise, rotation, etc. A brief
review is also made on the common classifiers used for texture image
classification. Also, a survey on texture image benchmark datasets is included.Comment: 29 Pages, Keywords: Texture Image, Texture Analysis, Texture
classification, Feature extraction, Image processing, Local Binary Patterns,
Benchmark texture image dataset
Learning Local Complex Features using Randomized Neural Networks for Texture Analysis
Texture is a visual attribute largely used in many problems of image
analysis. Currently, many methods that use learning techniques have been
proposed for texture discrimination, achieving improved performance over
previous handcrafted methods. In this paper, we present a new approach that
combines a learning technique and the Complex Network (CN) theory for texture
analysis. This method takes advantage of the representation capacity of CN to
model a texture image as a directed network and uses the topological
information of vertices to train a randomized neural network. This neural
network has a single hidden layer and uses a fast learning algorithm, which is
able to learn local CN patterns for texture characterization. Thus, we use the
weighs of the trained neural network to compose a feature vector. These feature
vectors are evaluated in a classification experiment in four widely used image
databases. Experimental results show a high classification performance of the
proposed method when compared to other methods, indicating that our approach
can be used in many image analysis problems