- [Instructor] After my program analyzes an image…and displays a copy of it with the faces outlined,…when I close the image window,…the command line asks me if I want to save…the analysis results to a JSON file.…If I type Y for yes, the program will save…a JSON file with the same name…and in the same directory as the image that was analyzed.…In my editor, I'll navigate to the resources folder…where I keep the images, and sure enough,…there's the JSON file.…
When I open it, I see that it contains two fields:…countFaces, which has a value of seven…for the number of faces it detected in that image,…and image location, which contains the path…to the image that was analyzed.…Creating that JSON output was a straightforward process…using Python's standard JSON module,…which I import on line six.…Down at the end of my detectFaces function on line 48,…I use the JSON module's dumps function,…which takes a Python dictionary of fields and values…and formats that into a JSON string,…which gets returned by the function.…
With that string in hand,…
Author
Released
6/8/2018Visit other courses in the series to see how to solve the same challenges in languages like C++, C#, JavaScript, PHP, Python, Ruby, Go, and Swift.
Skill Level Intermediate
Duration
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Introduction
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Welcome1m 26s
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1. Problem 1: Weather Statistics
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2. Problem 2: Where Am I?
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Intro: Where am I?1m 46s
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Making a POST with requests2m 14s
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3. Problem 3: Eight Queens
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Intro: Eight queens1m 42s
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Understanding permutations3m 42s
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4. Problem 4: Musical Instrument
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Intro: Accessing peripherals1m 54s
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5. Problem 5: Facial Recognition
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Intro: Facial recognition1m 38s
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Scaling images3m 12s
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Saving results as JSON1m 51s
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6. Problem 6: Real-Time Information Dashboard
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Understanding Django2m 13s
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Routing URLs with Django3m 53s
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Video: Saving results as JSON