Software tasks

GISEYE QuickLook Generator application has been designed to generate reduced-size images (quick-looks) and to store them in tiff format.
The application has the following advantages:

• Support of popular formats of source images
• Wide range of compression types and image interpolation
  
• Different types of color composites and raster byte allocation
  
• Creation of pyramidal quick-looks
  
• Quick-looks generation process control
  
• Quick-looks batch generation
  

 

    System requirements

• Microsoft Windows 2000/XP/Vista or higher
• Intel Pentium-III processor or higher
  
• 128Mb of RAM
  
• Display mode 1024×768 TrueColor

 
    Software graphic interface

GISEYE QuickLook Generator dialog includes group of elements for creation of input files and parameters of quick-look being created and the window with the output information, where data about quick-look creation process is displayed.

The dialog window also contains a set of functional buttons to start quick-looks creation process and to save application operations log.

 

   Control elements to create input files

Files, for which quicklooks will be created, are put into the Input Files list. To add a raster file in the list it is required to press “Add” and select the raster files from the folder of interest using standard file selection dialog.

To delete a raster files from the list, select the required files with the left mouse button and press “Remove” button.

    Control elements to set quicklook parameters

The path to the folder, where quicklooks for selected images will be created, is specified in Out Path field. The path to the folder of interest can be entered manually or using «…» button which opens the standard folder selection dialog.

Additional Parameters group of elements includes elements for image compression parameters setup during quicklooks creation.

In Resampling Algorithm drop-down list box the user needs to select the interpolation type during compression that will be used in quicklook creation.

In GeoTIFF Compression drop-down list box the compression type in GeoTIFF file is setup.

In Photometric Type drop-down list box the user may select one of the photometrical types of image representation.

In Interleaving drop-down list box the user can select the pixel interleave type.

In Overview Level field the user may set up the level of source image compression during quicklook creation. To create a quicklook without compression, specify 1. To create pyramidal quicklooks specify the required number of values using spacebar.

    Processing startup, control and termination

To startup quicklook creation process press « Start » button, located below Output field. The output information field will display the quicklook creation process status and the message about successful completion of the process or about the errors. « Stop » button turns active during quicklooks generation, which is used to suspend the process by the user.

After quicklooks generation completion, files with the input files names are created in the output folder with the _QL suffix at the end and the quicklook index number, corresponding to the number of input raster in Input Files list.

To save the content of the output information, press «Save Output » button, located under Output field. A standard file saving dialog will appear.

GISEYE QuickLook Generator can be closed using « Close » button or the standard window close button in the top right corner of the dialog window. After closing the application values of all parameters are saved in “ini” file, located in the application installation folder.