<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Hi-<br>
Just joined the openside-users list with information about the
Sakura VisionTek SVSLIDE format.<br>
You may already have data about this new format.<br>
Sakura promises an "open-source" export, but has not yet provided
one.<br>
<br>
We were able to determine (solely from examining a sample file) that
SVSLIDE is actually a SQLite database containing <span
style="color: rgb(0, 0, 0); font-family: 'Segoe UI', Verdana,
Arial; font-size: medium; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing: normal; line-height:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); display: inline !important;
float: none;">eXpress Persistent Objects (XPO.)<br>
We used a simple SQLite database browser to explore our sample
file.<br>
<br>
The database schema includes several fixed tables containing
typical metadata about the slide, </span><span style="color:
rgb(0, 0, 0); font-family: 'Segoe UI', Verdana, Arial; font-size:
medium; font-style: normal; font-variant: normal; font-weight:
normal; letter-spacing: normal; line-height: normal; orphans:
auto; text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); display: inline !important; float: none;"><span
style="color: rgb(0, 0, 0); font-family: 'Segoe UI', Verdana,
Arial; font-size: medium; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: auto; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); display: inline
!important; float: none;">annotation data,</span> and the name
of a single table named with a GUID tied to that slide.<br>
<br>
The unique table has three columns: [id] VARCHAR(50), [size]
BIGINT, [data] BLOB.<br>
[id] is a unique primary key.<br>
The first three rows of the unique table hold the [id]:<br>
++MagicBytes<br>
++VersionBytes<br>
Header<br>
<br>
There are two typical </span><span style="color: rgb(0, 0, 0);
font-family: 'Segoe UI', Verdana, Arial; font-size: medium;
font-style: normal; font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal; orphans: auto;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); display: inline !important; float: none;"><span
style="color: rgb(0, 0, 0); font-family: 'Segoe UI', Verdana,
Arial; font-size: medium; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: auto; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); display: inline
!important; float: none;">sort of </span>rows in the unique
table:<br>
a "data" row with a unique id, containing an image tile<br>
a paired row (</span><span style="color: rgb(0, 0, 0);
font-family: 'Segoe UI', Verdana, Arial; font-size: medium;
font-style: normal; font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal; orphans: auto;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); display: inline !important; float: none;"><span
style="color: rgb(0, 0, 0); font-family: 'Segoe UI', Verdana,
Arial; font-size: medium; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: auto; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); display: inline
!important; float: none;">of unknown significance) </span>with
the same id, suffixed with an "#" character (e.g.- </span><span
style="color: rgb(0, 0, 0); font-family: 'Segoe UI', Verdana,
Arial; font-size: medium; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing: normal; line-height:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); display: inline !important;
float: none;"><span style="color: rgb(0, 0, 0); font-family:
'Segoe UI', Verdana, Arial; font-size: medium; font-style:
normal; font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal; orphans: auto;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); display: inline !important; float: none;">T;2048|47616;1;2;0
)</span> .<br>
<br>
A typical data row:<br>
The data column contains a standard monochrome JPEG tile of
512x512.<br>
The size </span><span style="color: rgb(0, 0, 0); font-family:
'Segoe UI', Verdana, Arial; font-size: medium; font-style: normal;
font-variant: normal; font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: auto; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); display: inline !important;
float: none;"><span style="color: rgb(0, 0, 0); font-family:
'Segoe UI', Verdana, Arial; font-size: medium; font-style:
normal; font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal; orphans: auto;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); display: inline !important; float: none;">column </span>holds
the size in bytes of the data blob.<br>
<br>
The id </span><span style="color: rgb(0, 0, 0); font-family:
'Segoe UI', Verdana, Arial; font-size: medium; font-style: normal;
font-variant: normal; font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: auto; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); display: inline !important;
float: none;"><span style="color: rgb(0, 0, 0); font-family:
'Segoe UI', Verdana, Arial; font-size: medium; font-style:
normal; font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal; orphans: auto;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); display: inline !important; float: none;">column </span>is
comprised of five fields separated by a semicolon[;].<br>
[id] T;2048|47616;1;2;0<br>
[1] T : apparently indicates "Tile"<br>
[2] 2048|47616 : are the row-index|column-index (in pixels)<br>
[3] 1: the pyramid level {1 is the highest resolution (e.g.-
scanned with 40x objective), other resolutions are 2, 4, 8, 16,
32, 64, 128, with 256 being a thumbnail smaller than a single
tile}<br>
[4] 2: the monocolor {0=Red,1=Green,2=Blue)<br>
[5] 0: unknown (always zero?)<br>
<br>
The row- and column-index are based on the highest resolution
(largest) image, regardless of the pyramid-level (i.e.- an
absolute "location" in the image.)<br>
<br>
I can upload a sample SVSLIDE file if requested.<br>
<br>
Thank you and keep the good work!<br>
-Don Regula<br>
Stanford Pathology<br>
<br>
</span>
</body>
</html>