Visual Similarity Duplicate Image Finder - What's New?

Version 2.1.0.1:

Fixed Abort scan during building files list.
Fixed duplicates checked state after loading a project.
Folders list is correctly filled after loading a project.

Version 2.1.0.0:

Added "No Cache" option, faster than "New Cache" on a not-scanned yet folder. See main screen help for details.
Preview speed was greatly improved.
New grid window showing file type icon in front of the file name and colored similarity progress bar.
Improved duplicate documents detection when using autoskew.
Fixed incorrectly detecting some very small images as duplicates.
Better handling of corrupt images.
Grid columns can now be sorted keeping the group order.
Grid column settings are stored to registry and loaded on next program startup.
Delete to Recycle Bin and last used cache method settings are now correctly stored to registry.
Improved "Disable Auto Mark For This Folder" functionality.
Fixed CRC32 and FileSize methods.
Improved stability, lowered memory and system resources usage.
Default priority method was changed to Lower, so you can continue your work while scanning images in background.
Internal preview window is also shown on double clicking the small preview window or by pressing Enter in the duplicates list.
Other small fixes and changes.

Version 2.0.0.1:

Speed increase over 100 times! VSDIF is now the fastest duplicate images finder available.
Support for multi-core CPU. VSDIF now uses all your CPU cores in the images preprocessing step.
Completely rewritten and highly optimized engine. Can scan over 10000 hi-res images on an average 1.8Ghz desktop PC within 10 minutes!
8 times smaller cache file sizes. VSDIF now uses less hard disk space.
New redesigned user interface shows all duplicate groups in different colors in one grid window.
Access to some of the options directly from the main window.
Using Delete key in folder list removes the selected folders from the list.
Added popup menu in the duplicate results grid with items Open, Open with Associated Program and Locate in Explorer (Available only in the registered version).
Added Auto Select tool button.
Added button to delete a cache file
Using Delete key in the duplicates list, after a confirmation dialog you can delete all selected files from the list and from the disk. (Available only in the Registered version). Note the difference between selected and checked duplicates.

Version 1.9.0.1:

Fixed slowdowns in retrieving image information phase when comparing a lot of images.
VSDIF is about 200% faster on small projects and it could be over 5-10 times faster on big projects.
New and faster database format. Old databases are not supported.
Removed grayscale option. Grayscale duplicates are automatically detected.

Version 1.8.0.4:

VSDIF no longer asks to create a database if the selected scanning method is not visual scanning.
Fixed MD5 scanning issue introduced in previous version.

Version 1.8.0.3:

VSDIF is faster when comparing a lot of images.
Databases are now saved in local application data folder to be more compatible with Vista.

Version 1.8.0.2:

Changed the database file format. This fixes a problem adding new images to the database. You should recreate your databases.
Added Auto Skew detection option. Turn this option on if you want to compare images created with scanner. VSDIF will automatically rotate them.
Fixed changing the precision level didn't affect the scan until the program is restarted.
Changed the default process priority to lower. This helps you do some other work while the scan process is running.

Version 1.8.0.1:

Added support for custom databases with images. You can create databases to store the images information on the first scan and the next scans will use the information from the database. This speeds up a lot the process of retrieving images information and the whole scan.

Version 1.7.6.1:

Added option to select file cache location
Added 7-bit grayscale TIFF files support
Fixed performance issues

Version 1.7.5.1:

Fixed program crash after deleting files in groups
Added Adobe Photoshop (*.PSD) files support
Added ZIP compressed TIFF files support
Added 16-bit grayscale PNG files support

Version 1.7.1.2:

Fixed not closing file handles on retrieving images information

Version 1.7.1.1:

Added option to store the temporary images information in the memory or on the hard disk
Changed the project file extension and file association in explorer to *.vsdif

Version 1.7.0.1:

Added non-visual methods for comparing images by: MD5 hash, CRC32 checksum and file size
Added option to select folder in which you can move the duplicate files
Added comparing method combo box and similarity spin edit in the toolbar
Added windows explorer shell integration for .vsd files
Added Default Settings button in the options dialog
The first duplicate in group is marked with 'F' after the checkbox
Keyboard shortcut 'U' unchecks all duplicates in the current group
Keyboard shortcut 'I' shows the visual compare preview window
With double click or with popup menu in the folders list you can include/exclude folder from auto marking duplicates in it
Fixed an issue not closing the file handle on manual stop the scanning process

Version 1.6.0.1:

You can now save/load projects (scan results)
Added option to auto mark duplicates with smaller file sizes regardless of their dimensions
Added option to detect negative duplicates
You can sort the duplicate list by columns
Duplicate files creation date/time is shown in the duplicates list
Image similarity (%) is shown in the duplicates list
Added resize method popup menu in the duplicate preview windows. Available methods are: None, Triangle, Hermite, Bell, BSpline, Lanczos3, Mitchell, Nearest, Linear, Fast Linear, Bilinear, Bicubic
Added Zoom In/Zoom Out in the preview window
Added button Delete Marked In Group which deletes the selected images in the current duplicate group only
When deleting duplicate files a progress form is shown.
Added option to minimize the main window to the system tray.
Added forward/backward navigation for the duplicate groups while in duplicate images list. The keys are "Left Arrow" or "B" for backward and "Right Arrow" or "F" for forward
Minor GUI changes. Changed some labels text. Updated help and internal image engine.
Fixed maximized main window position and state loading problem.

Version 1.3.0.1:

Core Improved: Added options to perform smart image comparing using grayscale. It is now possible to detect grayscale duplicates of images.
Core Improved: Added option to select the duplicate finding process precision level. See help for details
Core Improved: Tweaked memory usage. Now the program uses up to 50% less memory when comparing images. This fixes some issues comparing large number of image files.
Core Improved: The image comparing process is now executed in a separate thread, thus avoiding GUI lockups.
Core Improved: Code cleanup and optimization. The scanning process is about 5-10% faster.
Core Bug fix: Tweaked again the auto select duplicate routine.
Core Bug fix: Fixed loading images with extensions that differ from the actual image format, e.g. the extension is .jpg, but the file is in BMP format.
GUI Improved: The folder list is auto saved and auto loaded on next startup.
GUI Improved: The last folder from Add Folder dialog is auto saved and auto loaded on next startup.
GUI Improved: Program window position and state is auto saved and auto loaded on next startup.
GUI Improved: Minor GUI changes. Updated help.

Version 1.2.0.1:

Added command-line options (only in Corporate version). See main window help for details
Changed user interface so you can choose more than one folder to scan
Added options to perform smart image comparing using Rotate 90, Rotate 180, Rotate 270, Flip Horizontal and Flip Vertical methods
The scanning process is now about 20% faster
The default scanning process priority is now "Below Normal"
Added option to set the scanning process priority
Added option to scan folders recursively (in version 1.0.0.0 it was always ON)
Main window is now re sizable and adjustable with splitters
Preview window is now resizable
Rewritten the auto select duplicate routine
Other minor changes and fixes

Version 1.0.0.0:

First public release