Autodesk 00126-050008-1640A User Guide - Page 216

WiseImage - User's Guide Smoothing Export Raster to Layer Select this checkbox to smooth the image. The Smoothing slider controls the smooth level. Moving this slider right makes the smooth level higher while moving left makes it lower. Switch on this checkbox to obtain a monochrome raster image or to preview the binarization results. Specify the color and layer for the monochrome raster image. Step2 Set the Recognition parameters: Max Width, Min Length and Accuracy. These parameters are equal to those for monochrome images in the raster to vector Conversion Options dialog and the Raster Properties toolbar. related buttons and controls: Min Length Sets the minimum length of a raster fragment which should be recognized as a polyline in the vectorization process. - Specify the length of the shortest raster line. - In order to measure directly from the image, click the Max Width button and draw a line along the smallest raster line. Sets the maximum width of a raster linear object which should be recognized as a polyline. - Specify the value of this parameter slightly greater than the maximum width of the raster line to vectorize. - If the program does not vectorize raster segments, then increase the value of this parameter. If the program does not approximate flooded raster areas by boundary objects, then reduce the value of this parameter. - In order to measure directly from the image click the button and draw a perpendicular line to the widest raster line you want to recognize. Accuracy slider Sets the accuracy of raster lines approximated by vector objects. If the quality of the raster image is poor, then reduce the parameter value so that the function will be able to recognize raster objects with significant form distortions. Step3 Switch off the Separate by color checkbox and define a preview area so that all the objects of all the colors present in the raster image can be seen. 222