This book constitutes the thoroughly refereed post-conference proceedings of the third International Symposium on Intelligent Systems Technologies and Applications (ISTA'17), September 13-16, 2017, Manipal, Karnataka, India. All submissions were evaluated on the basis of their significance, novelty, and technical quality. This proceedings contains 34 papers selected for presentation at the Symposium.

A Color Image Segmentation Scheme for Extracting Foreground from Images with Unconstrained Lighting Conditions.- Automatic Diagnosis of Breast Cancer Using Thermographic Color Analysis and SVM Classifier.- Enhancement of Dental Digital X-Ray Images Based on the Image Quality.- MRI/CT Image Fusion Using Gabor Texture Features.- Face Recognition in Videos Using Gabor Filters.- Convolutional Neural Networks Based Method for Improving Facial Expression Recognition.- Composition of DCT-SVD Image Watermarking and Advanced Encryption Standard Technique for Still Image.- Performance Analysis of Human Detection and Tracking System in Changing Illumination.- Comparative Analysis of Segmentation Algorithms Using Threshold and K-Mean Clustering.- Semi-Supervised FCM and SVM in Co-Training Framework for the Classification of Hyperspectral Images.- Segmentation of Thermal Images Using Thresholding-Based Methods for Detection of Malignant Tumours.- Recognition of Handwritten Benzene Structure with Support Vector Machine and.- Logistic Regression a Comparative Study.- Image and Pixel Based Scheme for Bleeding Detection in Wireless Capsule Endoscopy Images.- Leaf Recognition Algorithm for Retrieving Medicinal Information.- Camouflaged Target Detection and Tracking Using Thermal Infrared and Visible Spectrum Imaging.- Heuristic Approach for Face Recognition Using Artificial Bee Colony Optimization.- ILTDS: Intelligent Lung Tumor Detection System on CT Images.- Blink Analysis Using Eye Gaze Tracker.- A Survey of Brain MRI Image Segmentation Methods and the Issues Involved.- Scene Understanding in Images.