Geomatica Focus features the Smart GeoFill tool which allows you to alter aspects in your imagery, such as copying features or terrain elements, or filling an area of interest with content from an overlapping image to replace an unwanted aspect. You can adjust settings for blend width, color balance, contrast, and brightness of the source area to …
The CATALYST Professional Object Analyst is an object-based image-analysis (OBIA) module. It is used to segment an image into objects for classification and analysis. It differs from the traditional pixel-based approach, which focuses on a single pixel as the source of analysis. BATCH CLASSIFICATION The Object Analyst workflow has a batch classification feature. With batch …
Object Analyst is an object-based image-analysis (OBIA) module. It is used to segment an image into objects for classification and analysis. It differs from the traditional pixel-based approach, which focuses on a single pixel as the source of classification. Object Analyst is for use primarily with very-high-resolution (VHR) imagery. The tool can be used with …
Table of Contents Workflow Overview Programmatically download Insights Ground Displacement sample data (Kings County) via AWS Data Exchange with Python. Requirements Subscriptions Amazon Web Services (AWS) California InSAR Displacement – Kings County Sample Libraries and Scripts Python 3.x Subscribing to CATALYST Insights free sample data on ADX Register for an AWS Account if you do …
The following tutorial demonstrates how to change the working path and autolaunch programs in CATALYST Professional. Table of Contents How to change the default working path The following steps outline the procedure for changing the working path in CATALYST Professional. Often times you will save your data to a specific directory on your machine instead …
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In image processing, mosaicking means to join several overlapping images to form a single, uniform image. It is similar to creating a jigsaw puzzle with your images, and then making the seams disappear. For the mosaic to look like a single image instead of a collage of images, it is important that the images fit …
Table of Contents INTRODUCTION The following is a step-by-step tutorial of the procedure for extracting a digital surface model (DSM) (also referred to as a digital elevation model, or DEM) from stereo imagery and converting it to a digital terrain model (DTM). A DSM represents the earth’s surface and includes all objects on it, e.g., …
Table of Contents Orthorectified images (orthos) are geometrically corrected and georeferenced imagery. Orthorectification is the process of using a rigorous math model and a digital elevation model (DEM) to correct distortions in raw images. This tutorial outlines the optical satellite orthorectification process using OrthoEngine. This workflow will show how to import data, collect ground control …
Super Registration Workflow Overview The super registration algorithms can co-register images with up to 1/10th of a pixel accuracy to reduce the risk of misalignment errors. This misalignment can be caused by poor math models (e.g. inaccurate GCPs), a low quality elevation model or distortions in the camera lens. Poor alignment can make some types …
