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Imatest Documentation Vertical, Horizontal edges (or both) Step chart (checkbox) Color chart (checkbox) Rows (Auto or number) Speedup (checkbox) ROI size Crop borders ROI width (below ROI size slider) Other controls contrast 11. All squares, edges (many; overlapping; slow) All available edges; not generally recommended. 3D– more detail than generally needed 12. Center, part-way to corners (for mfg test) (5) This is a minimal pattern for manufacturing testing, where high speed is required. 13. All squares, inner & bdry except low contrast (good 3D map). A highly detailed grid, recommended for detailed 3D displays for charts that have two contrast levels (mostly high and a few low). The edges tend to be non-overlapping. best for 3D plots with charts that have squares with two contrast levels Other selections may be added on user request. Chooses between Vertical and Horizontal edges (or both). Usually Vertical, but Horizontal is useful on occasion. Use both for Lens-style MTF plots. Perform step chart analysis. Should be unchecked for charts that do not include the step chart (such as transmissive chrome-on-glass charts). Checked by default. Perform color analysis. Should only be checked for charts that include the optional color pattern. Be sure the correct Color reference (file name) and Color space has been entered in the Settings region of the Settings window. Unchecked by default. The number of rows of squares in the chart (between the top and bottom bars) or Auto for automatic row detection (the default). Since Automatic row detection may fail if the apect ratio of the squares is not 1:1, setting it to the actual number of rows (4, 5, or 7) is recommended. Speed up calculatons by eliminating some calculations that many users don't require, including SQF, noise statistics and historgrams, and edge roughness. Slider that determines the size of the ROI. Use the largest value that keeps a save distance from edges of squares and top and bottom bars. May need to be reduced where distortion is severe. Allows borders to be cropped to remove interfering patterns that might otherwise be included in the image. This button is tinted pink whenever the image is cropped. Width of ROI selection. Normal width for the standard rectangular ROI. Choose Wider or Widest for very fuzzy edges or for enhanced noise analysis. Title Title. Defaults to file name. You can add a description. Help Open this web page in a web browser. Image setting Selects image channel for display: Original (RGB) image, Red, Green, or Blue channels Save settings Save settings (for use in auto SFRplus), but do not continue with run. OK Save settings and continue with run: Calculate results for all selected region. You will be able to view results interactively. Cancel Cancel run; do not save settings After you've finished making settings, click OK to save settings and continue with the run. You can Click Save settings to save the settings without continuing. SFRplus settings window The SFRplus settings window, shown below, opens when Settings window in the setup window is pressed. The settings are read from the rescharts.ini file, and saved to both imatest.ini and rescharts.ini when OK is pressed. Settings are similar to the settings in the SFR input dialog box. 168 of 451
Imatest Documentation SFRplus settings window This window is divided into sections: Title and Help on top, then Plot and save, Display options, Settings, Optional parameters, and finally, OK or Cancel . Title defaults to the input file name. You may leave it unchanged, replace it, or add descriptive information for the camera, lens, converter settings, etc.— as you please. Help opens a browser window containing a web page describing the module. The browser window sometimes opens behind other windows; you may need to check if it doesn't pop right up. Plot and save (for SFRplus Master auto and IT; NOT for Rescharts). This area selects figures to plot and save as well as a number of data save settings. It only applies to the automatic version of SFRplus in Imatest Master (also EXE and DLLs) — it is not for Rescharts. The leftmost checkboxes in this section select figures to plot and save. Note that all plotted figures are saved. Saved figures, CSV, and XML files are given names that consist of a root file name (which defaults to the image file name) with a suffix added. Examples: Canon_17-40_24_f8_C1_1409_YR7_cpp.png Canon_17-40_24_f8_C1_1409_YR7_MTF.csv Close figures after save should be checked if a large number of figures is to be displayed. It prevents a buildup of figures, which can slow processing. A CSV summary file is saved for all runs. An XML file is saved if Save XML results is checked. You can select either Save CSV files for individual ROIs or Save summary CSV file only (the summary file is always saved). Save figures as PNG or FIG files. PNG files (a losslessly-compressed image file format) are the default—.they require the least storage. Matlab FIG files allow the data to be manipulated-- Figures can be resized, zoomed, or rotated (3D figures-only). FIG files should be used sparingly because they can be quite large. PNG files are preferred if no additional manipulation is required. Save folder determines where results are stored. It can be set either to subfolder Results of the image folder or to a folder of your choice. Subfolder Results is recommended because it is easy to find if the image folder is known. 169 of 451
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Imatest Documentation © 2009 Imate
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Imatest Documentation Using SFRplus
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