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Third-Party Licenses

Last updated: April 2026

BBZ Image Tool is built on outstanding open-source software. All original code is the exclusive property of BBZ Image Tool, Inc. The components below are used under their respective open-source licenses, reproduced in full where required.

GUI Framework

PySide6 / Qt

GNU Lesser General Public License v3 (LGPL v3)

Author / maintainer: The Qt Company

The graphical user interface of BBZ Image Tool is built using PySide6, the official Python binding for the Qt framework. Qt provides the window system, widgets, event handling, and rendering pipeline used throughout the application.

License text ↗Qt source code ↗

Image Processing

Pillow (PIL Fork)

Historical Permission Notice and Disclaimer (HPND)

Author / maintainer: Alex Clark and contributors

Pillow is the primary image I/O and processing library. It handles reading and writing image files in all supported formats (JPEG, PNG, WebP, BMP, TIFF, GIF), as well as resizing, cropping, format conversion, and color space operations.

Copyright © 2010-2024 by Alex Clark and contributors

Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies.

THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE.

OpenCV (cv2)

Apache License 2.0

Author / maintainer: OpenCV team

OpenCV provides advanced image processing operations including sharpening, de-blur, background cleanup, contour detection for smart crop, and AI-assisted image tools.

License text ↗

NumPy

BSD 3-Clause License

Author / maintainer: NumPy Developers

NumPy provides the numerical array operations that underpin image data manipulation throughout the application.

Copyright © 2005-2024, NumPy Developers. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of the NumPy Developers nor the names of any contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.

SciPy

BSD 3-Clause License

Author / maintainer: SciPy developers

SciPy provides signal processing routines used in image sharpening, filtering, and enhancement operations within the Image Manager.

License text ↗

ImageHash

BSD 2-Clause License

Author / maintainer: Johannes Buchner

ImageHash provides perceptual hashing algorithms used by the Image Manager for duplicate image detection and similarity comparisons.

Copyright © 2013, Johannes Buchner. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice and this list of conditions.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation.

BBZ Image Tool, Inc. makes no claim of ownership over any third-party components listed on this page. Each component is governed exclusively by its own license. Your use of BBZ Image Tool does not grant you any rights to these components beyond those provided by their respective licenses. For questions, contact legal@bbzimagetool.com.

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