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Dušan Poizl
2022-04-26 22:32:38 +02:00
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
<h2>Tenmon Help</h2>
<h3>File</h3>
<p>Open file to display it in main window</p>
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<style type="text/css">
h1, h2, h3, h4 { padding:0px; margin:10px; }
p { padding:0px; margin:5px 5px 10px 5px; }
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<body>
<h2>Tenmon help</h2>
<p>Tenmon is primary for viewing astro photos and images. It can open following formats
<ul>
<li>FITS 8, 16 bit integer and 32 bit float</li>
<li>XISF 8, 16 bit integer and 32 bit float</li>
<li>JPEG and PNG images</li>
</ul>
</p>
<h3>Main windows</h3>
<p>Main window show loaded images. On the left there is<i>Image info</i> which display detailed about actual image.
<i>File system</i> display all images from current dir.
On top is main menu and under it <i>Stretch panel</i>. All panels can be closed and moved around. Closed panel can be
opened again through menu <i>Docks</i>.
</p>
<h3>Opening and saving images</h3>
<p>To open image select menu <i>File->Open</i>. After file selection this file is displayed in main windows
Panel <i>File system</i> is populated with rest of images in current directory.</p>
<p>Currently displayed image can be saved into different format with <i>File->Save as</i>. There is selection for
of formats JPEG, PNG FITS and XISF. In case of JPEG or PNG first stretch function is applied. FITS and XISF are converted
without format stretch.</p>
<h3>View</h3>
<p>Menu <i>View</i> affect size and scale displayed images. <i>Zoom In/Zoom Out</i> magnify and shrink image.
For this mouse wheel can be also used. <i>Best fit</i> display image so it is shown across whole window.
<i>100%</i> display image in 1:1 scale. <i>Fullscreen</i> show main window on whole screen.
<i>Thumbnails</i> show small thumnails for all images from current dir.
</p>
<h3>Stretch toolbar</h3>
<p>This panel change how images are displayed. First there is slider scale with three points settings.
<br><br><img src=":/about/stretch-panel.png">
<ul>
<li>black point - all pixels with value lower that set will be black</li>
<li>mid point - all pixels with this value will be shown with 50% intensity</li>
<li>white point - all pixels with value above this will be white</li>
</ul>
Next is button that set black and mid point to optimal place so image can be shown with optimal brightness.
Second button reset three values for black, mid and white point to default. Invert colors display image as negative.
Super pixel CFA average two by two pixels into one which is suitable for images from colour camera.
Last button toggle setting optimal stretch for each image individually on load.</p>
<h3>Marking imagesv</h3>
<p>Images can be marked in menu <i>Select</i>. List of marked images can be shown with
<i>Select->Show marked</i>. This dialog serve to clear marks from images. Marked images have * character in
main window title bar. Marked images can be copied or moved to selected directory with <i>File->Copy/Move marked files</i>.
After copy or move list of marked files is cleard. Program will remember list of marked files after quit.</p>
<h3>Database of FITS/XISF files</h3>
<p>Program can search direcory and index meta data from FIST and XISF images into internal database. This database can be then
searched. To index directory with FIST/XISF images select it through <i>File->Index directoryr</i>.
Selected directory is then searched and meta data from FITS and XISF images are stored into database.
To refresh database you can run <i>File->Reindex</i>. This will update any changed meta data and remove any record about
deleted files. To index new files run index directory again.</p>
<p>To show database select <i>Docks->FITS/XISF database</i>. Database is shown as table where each column is different property.
AT bottom of database panel is button to select which propertis are displayed. Next are three combo boxes and text inputs.
Combo box select which property to search and text input what value to search.
<br><img src=":/about/filter.png"><br>
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.
Character % (percent sing) is wildcard represent zero, one or many characters. Character _ (underscore) is second wildcard character that
represent single character. Without wildcard character exact string is searched.</p>
</body>
</html>