SPOT 4.1 Basic and Advanced Software Manual for SPOT Insight ...

Ch. 8 – Viewing, Editing, and Annotating ImagesTo merge images, follow these steps:1. Define the source foreach image.At least two Source Images must be selected. If the image that you select ispart of an image sequence, the Sequence Index box is also active. The sourcecan be:2. Specify the brightness(Scale Factor) forindividual images3. Specify the PositionOffsets for individualimages4. If you have definedposition offsets, specifywhether the mergedimage will retain the nonoverlappingareas.5. Specify the Auto-Scalebrightness setting for thefinal merged image.6. Preview your mergedimage.• A Currently Open Document – Select Currently Open Document to mergea currently open image. Specify the number of the image in the sequence,if applicable.• An image on File – Select File to merge a file from disk. Either enter the filepath in the box, or click on the browse button (to the right of the box) tosearch for and select a file from disk. Specify the number of the image inthe sequence if applicable.• A Database (Windows only) – Select Database to merge a SPOTdatabase image. To merge a database image you must enter the Image IDfor that image. You can determine the eight-digit Image ID number bysearching the database for the image that you want to add. The searchresults display the image ID number. In order to select a database image,the database must be open.When you are merging monochrome images, the program uses whatever palettethat you have set for that image. So, if you defined a specific palette for animage, that color appears in the merged image. If a palette has not beenassigned to an image, the program uses the grayscale palette as a default.Palettes cannot be applied to monochrome images through the Merge Imagesfunction. They must be applied prior to merging the image, either via the ImageSetup window (pre-capture) or the Set Palette Edit menu option (post capture).• For information on defining palettes, refer to Ch. 4 – Working in AdvancedMode.• For information on applying a palettes to an image as part of the imagecapture process, refer to the Palette Image Setup option, as discussed inCh. 5 – Preparing to Take a Picture (Insight B/W users only).• For information on applying a palette to a captured image, refer to the SetPalette Edit menu option, as discussed in this chapter.For each source image, specify a Scale Factor between .01 and 5.• Numbers between .01 and 1 darken the image.• Numbers between 1 and 5 lighten the image.Changing filters for an image capture can cause its position to shift from that ofthe previous capture. This can be problematic when trying to merge two or threeimages captured with different filters. The Position Offsets for each individualimage in the merged image allow you to compensate for such shifts byspecifying Horizontal and Vertical Position Offsets in pixels.To retain the non-overlapping areas, ensure that the Include Non-OverlappingAreas in Final Image box is selected. If you do not select the box, the finalimage automatically discards any non-overlapping areas.Whereas the Scale Factors are applied to individual images before they areMerged, the Auto-Scale Brightness feature automatically adjusts the brightnessof the merged image to prevent overlapping bright areas from burning out.Click on Apply to apply your settings and view the merged image. When youclick on Apply, the Merge Images dialogue remains open, allowing you toexperiment with different Scale Factors and Position Offsets. Whenexperimenting with different values, click on Shrink to view only the ScaleFactors and Position Offsets – this minimizes the amount of space that theMerge Images dialogue takes up in the window.7. Click on OK. When you are satisfied with the appearance of the merged image, click on OK toapply the settings and close the Merge Images dialogue.160 User Guide to the SPOT Insight Camera