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| Rev | Author | Line No. | Line |
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| 4758 | right-hear | 1 | This viewer is conceived to open and display information and image content of J2K, JP2, |
| 2 | and MJ2 files. |
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| 3 | The viewer application interface is divided into three main panels: |
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| 4 | - a browsing pane; |
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| 5 | - a viewing pane; |
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| 6 | - a log/peek pane. |
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| 7 | |||
| 8 | The browsing pane will present the markers or boxes hierarchy, with position (byte number where marker/box starts and stops) and length information (i.e., inner length as signalled by marker/box and total length, with marker/box sign included), in the following form: |
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| 9 | |||
| 10 | filename |
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| 11 | | |
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| 12 | |_ #000: Marker/Box short name (Hex code) |
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| 13 | | | |
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| 14 | | |_ *** Marker/Box long name *** |
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| 15 | | |_ startbyte > stopbyte, inner_length + marker/box sign length (total length) |
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| 16 | | |_ Additional info, depending on the marker/box type |
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| 17 | | |_ ... |
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| 18 | | |
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| 19 | |_ #001: Marker/Box short name (Hex code) |
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| 20 | | | |
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| 21 | | |_ ... |
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| 22 | | |
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| 23 | ... |
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| 24 | |||
| 25 | |||
| 26 | The viewing pane will display the decoded image contained in the JPEG 2000 file. |
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| 27 | It should display correctly images as large as 4000x2000, provided that a couple of GB of RAM are available. Nothing is known about the display of larger sizes: let us know if you manage to get it working. |
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| 28 | |||
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| 30 | The log/peek pane is shared among two different subpanels: |
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| 31 | |||
| 32 | - the log panel will report a lot of debugging info coming out from the wx GUI as well as from the openjpeg library |
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| 33 | - the peek pane tries to give a peek on the codestream/file portion which is currently selected in the browsing pane. It shows both hex and ascii values corresponding to the marker/box section. |
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| 34 |