74 lines
4.2 KiB
Plaintext
74 lines
4.2 KiB
Plaintext
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
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<head>
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<style type="text/css">
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h1, h2, h3, h4 { padding:0px; margin:10px; }
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p { padding:0px; margin:5px 5px 10px 5px; }
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</style>
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</head>
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<body>
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<h2>Tenmon help</h2>
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<p>Tenmon is primary for viewing astro photos and images. It can open following formats
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<ul>
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<li>FITS 8, 16 bit integer and 32 bit float</li>
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<li>XISF 8, 16 bit integer and 32 bit float</li>
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<li>JPEG and PNG images</li>
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</ul>
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</p>
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<h3>Main windows</h3>
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<p>Main window show loaded images. On the left there is<i>Image info</i> which display detailed about actual image.
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<i>File system</i> display all images from current dir.
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On top is main menu and under it <i>Stretch panel</i>. All panels can be closed and moved around. Closed panel can be
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opened again through menu <i>Docks</i>.
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</p>
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<h3>Opening and saving images</h3>
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<p>To open image select menu <i>File->Open</i>. After file selection this file is displayed in main windows
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Panel <i>File system</i> is populated with rest of images in current directory.</p>
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<p>Currently displayed image can be saved into different format with <i>File->Save as</i>. There is selection for
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of formats JPEG, PNG FITS and XISF. In case of JPEG or PNG first stretch function is applied. FITS and XISF are converted
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without format stretch.</p>
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<h3>View</h3>
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<p>Menu <i>View</i> affect size and scale displayed images. <i>Zoom In/Zoom Out</i> magnify and shrink image.
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For this mouse wheel can be also used. <i>Best fit</i> display image so it is shown across whole window.
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<i>100%</i> display image in 1:1 scale. <i>Fullscreen</i> show main window on whole screen.
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<i>Thumbnails</i> show small thumnails for all images from current dir.
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</p>
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<h3>Stretch toolbar</h3>
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<p>This panel change how images are displayed. First there is slider scale with three points settings.
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<br><br><img src=":/about/stretch-panel.png">
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<ul>
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<li>black point - all pixels with value lower that set will be black</li>
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<li>mid point - all pixels with this value will be shown with 50% intensity</li>
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<li>white point - all pixels with value above this will be white</li>
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</ul>
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Next is button that set black and mid point to optimal place so image can be shown with optimal brightness.
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Second button reset three values for black, mid and white point to default. Invert colors display image as negative.
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Super pixel CFA average two by two pixels into one which is suitable for images from colour camera.
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Last button toggle setting optimal stretch for each image individually on load.</p>
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<h3>Marking imagesv</h3>
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<p>Images can be marked in menu <i>Select</i>. List of marked images can be shown with
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<i>Select->Show marked</i>. This dialog serve to clear marks from images. Marked images have * character in
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main window title bar. Marked images can be copied or moved to selected directory with <i>File->Copy/Move marked files</i>.
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After copy or move list of marked files is cleard. Program will remember list of marked files after quit.</p>
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<h3>Database of FITS/XISF files</h3>
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<p>Program can search direcory and index meta data from FIST and XISF images into internal database. This database can be then
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searched. To index directory with FIST/XISF images select it through <i>File->Index directoryr</i>.
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Selected directory is then searched and meta data from FITS and XISF images are stored into database.
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To refresh database you can run <i>File->Reindex</i>. This will update any changed meta data and remove any record about
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deleted files. To index new files run index directory again.</p>
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<p>To show database select <i>Docks->FITS/XISF database</i>. Database is shown as table where each column is different property.
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AT bottom of database panel is button to select which propertis are displayed. Next are three combo boxes and text inputs.
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Combo box select which property to search and text input what value to search.
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<br><img src=":/about/filter.png"><br>
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In this example it search for files that have "Bias" in their file name and property OBJECT is M_42 and DATE begin with 2022.
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Character % (percent sing) is wildcard represent zero, one or many characters. Character _ (underscore) is second wildcard character that
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represent single character. Without wildcard character exact string is searched.</p>
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</body>
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</html>
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