bbrown
March 26, 2022, 1:25am
72
A Great study group on the first half of lecture 4.
We clarified the importance of zeroing out the require_grad function and the rationale behind it. We also went through the answers to the lecture 4 questions from this thread.
Here are the questions:
How is a greyscale image represented on a computer? How about a color image?
Images are represented by arrays with pixel values representing the content of the image. For grayscale images, a 2-dimensional array is used with the pixels representing the grayscale values, with a range of 256 integers. A value of 0 represents black, and a value of 255 represents white, with different shades of gray in between. For color images, three color channels (red, green, blue) are …
See you next week. Same FastAI time and place
FastAI 2022 Study Grouphttps://meet.google.com/ite-mzgy-wbk
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