About ERDAS IMAGINE

ERDAS Imagine is provided to users in a modular manner, so that users can reasonably choose different functional modules and their different combinations based on their own application requirements and funding conditions, and tailoring the system, make full use of hardware and software resources and meet the professional application requirements of users to the maximum extent. ERDAS Imagine is intended for users with different needs, the system's extended functions adopt an open architecture in the form of imagine essenessen, imagine advantage, and imagine professional to provide users with a low, medium, and high grade product architecture, A wide range of function extension modules are available for users to choose from, making the combination of product modules highly flexible.
1. Imagine essentials level: it is a very low-cost image tool software that includes graphics and visualization core functions. Whether you work independently or in a collaborative computing environment, you can use imagine essenessento Complete 2D/3D display, data input, sorting and management, map registration, graphic output, and simple analysis. You can integrate multiple data types and upgrade to other ERDAS products on the same easy-to-use and easy-to-cut interface.
Scalable modules:
* Vector -- uses the ArcInfo Data Structure coverage of the GIS industry leader ESRI, establishes, displays, edits, and queries ArcInfo to establish and modify the topological relationship, and bidirectional conversion between vectors and raster images;
* Virtual GIS-real 3D landscape reproduction and GIS analysis;
* Developer's toolkit -- C program interface of ERDAS Imagine, function library of ERDAS, and programming guide.
2. Imagine advantage level: it is based on the imagine essential level and adds more powerful software such as image grating GIS and single-chip aerial photography correction. Imagine advantage provides you with flexible and reliable tools for grating analysis, normal shooting correction, terrain editing, and advanced image mosaic. In short, imagine advantage is a complete image Geographic Information System (imaging GIS ).
In addition to the essential extension modules, the extensible modules are as follows:
* Radar module-Basic Radar Image Processing;
* OrthoBase-corrected the positive injection of regional digital images;
* OrthoBASE Pro-Fast Normal shooting correction for aerial and Wei films, and automatic extraction of High Precision DEM Using stereo images;
* OrthoRadar-supports correction of RadarSat and ERS radar images;
* StereoSAR DEM: uses a three-dimensional method to extract DEM from radar image data;
* Ifsar dem-extract DEM from radar image data using the interference principle;
* ATCOR2-Atmospheric correction and haze elimination for images in relatively flat areas;
* ATCOR3-correcting the atmosphere of mountain images and eliminating smog can eliminate the terrain impact;
3. IMAGINE Professional level: it is designed for Professional users who are engaged in complex analysis and require the latest and most comprehensive processing tools and experience. Professional is a fully functional Geographic Image System. In addition to the functions included in Essentials and Advantage, IMAGINE Professional also provides easy-to-use spatial modeling tools (using a simple graphical interface), advanced parameter/non-parameter classifier, classification optimization and Accuracy Evaluation, as well as hyperspectral and radar analysis tools. It is the most complete graphics and display, information extraction, normal shooting correction, complex space modeling and cutting-edge image processing system.
In addition to the Essential and Advantage-level expansion modules, the following modules can be expanded:
* Subpixel Classifier: the sub-pixel Classifier uses advanced algorithms to extract information from multi-spectral images, which can be used to extract more than 20% of the substances in the Mixed Element;
In IMAGINE, ERDAS supports the architecture of the dynamic connection library (DLL. It supports target sharing technology and target-oriented design and development, and provides a means to add new functions to the system without recompiling and connecting the system, and allows you to crop these extended features in a specific project. The following DLL libraries are provided in erdas imagine:
* Image format DLL-provides direct access to multiple image format files without conversion, improving ease of use and saving disk space. Supported image formats include: Imagine, grid, LAN/GIS, Tiff (geotiff), GIF, jfif (JPEG), fit, BMP, and original binary format.
* Terrain Model DLL-provides new types of calibration and calibration (calibration) to support Calibration Models Based on sensor platforms and user-tailored models. These models include affine, polynomial, rubber sheeting, TM, Spot, IKONOS, QuickBird, and single frame camera.
* Font dll library-Provides cropping and direct access to fonts to support professional drawing applications, non-Latin national character sets, and thousands of fonts developed by commercial companies. In imagine 8.3, OTL (IMAGINE 8.1, 8.2), TrueType, And postscript fonts are supported.