Aperio ImageScope – Shareware – WindowsMac

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Aperio Image Viewer
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Imagescope 64

Use the link below and download Aperio ImageScope legally from the developer's site. We wish to warn you that since Aperio ImageScope files are downloaded from an external source, FDM Lib bears no responsibility for the safety of such downloads. We recommend checking your downloads with an antivirus. ImageScope lets you view slide images taken by the Leica Biosystems anatomic pathology scanner. It has the ability to compare different stains and conduct image analysis. You can zoom in and annotate different areas, optimize an appearance of the image, and even record your actions while zooming through the slide.

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Overview

Aperio ImageScope is a Shareware software in the category Miscellaneous developed by Aperio ImageScope.

The latest version of Aperio ImageScope is currently unknown. It was initially added to our database on 10/22/2008.

Aperio ImageScope runs on the following operating systems: Windows/Mac.

Aperio ImageScope has not been rated by our users yet.

Write a review for Aperio ImageScope!

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Format: single-file pyramidal tiled TIFF, with non-standard metadata and compression
File extensions: .svs, .tif
OpenSlide vendor backend: aperio

Vendor Documentation

Detection

Aperio slides are stored in single-file TIFF format. OpenSlide will detect a file as Aperio if:

The file is TIFF.
The initial image is tiled.
The ImageDescription tag starts with Aperio.

Relevant TIFF tags

Tag	Description
`ImageDescription`	Stores some important key-value pairs and other information, see below
`Compression`	May be 33003 or 33005, which represent specific kinds of JPEG 2000 compression, see below

Extra data stored in `ImageDescription`

For tiled images, the ImageDescription tag contains some dimensionaldownsample information as well as what look likeoffsets. Additionally, vertical line-delimited key-value pairs arestored, in at least the full-resolution image. A key-value pair isequals-delimited. These key-values are stored as properties startingwith “aperio.”. Currently, OpenSlide does not use any of theinformation present in these key-value fields.

For stripped images, the ImageDescription tag may contain a name,followed by a carriage return. This is used for naming the associatedimages. The second image in the file does not have a name, though itis an associated image.

TIFF Image Directory Organization

http://www.aperio.com/documents/api/Aperio_Digital_Slides_and_Third-party_data_interchange.pdfpage 14:

The first image in an SVS file is always the baseline image (fullresolution). This image is always tiled, usually with a tile sizeof 240x240 pixels. The second image is always a thumbnail,typically with dimensions of about 1024x768 pixels. Unlike theother slide images, the thumbnail image is alwaysstripped. Following the thumbnail there may be one or moreintermediate “pyramid” images. These are always compressed withthe same type of compression as the baseline image, and have atiled organization with the same tile size.

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Optionally at the end of an SVS file there may be a slide labelimage, which is a low resolution picture taken of the slide’slabel, and/or a macro camera image, which is a low resolutionpicture taken of the entire slide. The label and macro images arealways stripped.

JPEG 2000 (compression types 33003 or 33005)

Some Aperio files use compression type 33003 or 33005. Images usingthis compression need to be decoded as a JPEG 2000 codestream. For33003: YCbCr format, possibly with a chroma subsampling of 4:2:2. For33005: RGB format. Note that the TIFF file may not encode thecolorspace or subsampling parameters in thePhotometricInterpretation field, nor the YCbCrSubsampling field,even though the TIFF standard seems to require this. The correctsubsampling can be found in the JPEG 2000 codestream.

Associated Images

thumbnail: the second image in the file
label: optional, the name “label” is given in ImageDescription
macro: optional, the name “macro” is given in ImageDescription

Known Properties

All key-value data encoded in the ImageDescription TIFF field isrepresented as properties prefixed with “aperio.”.

openslide.mpp-x: normalized aperio.MPP
openslide.mpp-y: normalized aperio.MPP
openslide.objective-power: normalized aperio.AppMag