Unless explicitly stated, all tutorials on the PyImageSearch blog, including my books and courses, adhere to the following license:
Copyright (c) 2020 PyImageSearch.com SIMPLE VERSION Feel free to use this code for your own projects, whether they are purely educational, for fun, or for profit. THE EXCEPTION BEING if you are developing a course, book, or other educational product. Under *NO CIRCUMSTANCE* may you use this code for your own paid educational or self-promotional ventures without written consent from Adrian Rosebrock and PyImageSearch.com. LONGER, FORMAL VERSION Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. Notwithstanding the foregoing, you may not use, copy, modify, merge, publish, distribute, sublicense, create a derivative work, and/or sell copies of the Software in any work that is designed, intended, or marketed for pedagogical or instructional purposes related to programming, coding, application development, or information technology. Permission for such use, copying, modification, and merger, publication, distribution, sub-licensing, creation of derivative works, or sale is expressly withheld. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Additionally, if you use my code examples in a blog post, tutorial, book, chapter, paper, publication, presentation, etc., you need to properly cite the tutorial.