Autodesk 00126-050008-1640A User Guide - Page 91

7 Binarization and Color Separation Range tab The Range tab is used to tune the following range methods: Range by Grey, Range by RGB or Range by HSV. Colors This list shows information on the central colors of the specified ranges and allows you to select a range for correction and deletion. The left part of the list element shows a sample of a selected color (or grey tone), and the right part shows color component values in the current color model (grey level for grayscale images). To select a range, click its appropriate color in the Colors list. Above there are three buttons with eyedropper bitmaps, these allow you to create new ranges. Color selection allows you to create a new range by selecting a color in the image. Click the button and specify a color on the image with mouse. WiseImage creates a new range, using the color of the specified pixel as the range central color. Averaged color selection allows you to create a new range by choosing an averaged color in the area around the pixel clicked. WiseImage calculates the average color value in the area of the specified pixel and creates a new range, using the calculated color as the range central color. The halflengths of the created range are automatically adjusted to take the closest colors, found in the specified pixel area. Area averaged color selection allows you to create a new image by calculating the averaged color of an arbitrary area in the image. Click the button and specify the vertices of a polygonal area or drag the cursor, outlining the boundary of the polygonal area. Complete the area selection with a double-click. WiseImage calculates the average color value in the specified area and creates a new range, using the calculated color as the range central color. The half-lengths of the created range are automatically adjusted to close colors, found in the specified pixel area. Ranges Using this box you can change the half-lengths of a range, selected from the Colors list. The type, name and number of sliders and boxes depend on the current conversion method. For example, if you choose Range by HSV, the following sliders and boxes to modify the range half-lengths are displayed: hue- H, saturation - S and brightness - V. If you choose Range by Grey, then there is only one slider and one box to enter the half-length of the brightness range. 93