Currently, I am facing a challenge in converting a uint8 array representing a 48x48 image into the actual image file (jpg/jpeg/gif) of the same dimensions. My initial approach involved converting the array data to binary and then saving it to a file using ('wb' mode), however, this method proved unsuccessful.
I am seeking guidance on alternative methods or solutions that can help me achieve this task successfully. Any advice would be greatly appreciated!
When working with TensorFlow to generate images (which seems apparent based on your tag), you have the option to utilize either tf.image.encode_jpeg() or tf.image.encode_png() operations for encoding a uint8 tensor into an image:
uint8_data = ...
image_data = tf.image.encode_png(uint8_data)
Following the execution of either operation, you will receive a tf.string tensor that can be assessed and saved to a file.
Using Octave made generating a random matrix and saving it as an image in jpg format very simple for me. I experimented with creating a 48x48 matrix and then exporting it as a jpg file.
img = rand(48,48);
imwrite(img, "test.jpg")
https://i.stack.imgur.com/RzAGY.jpg
This method can be used to save images of various types.
If you provide more information about your goals, such as whether this is a one-time task or part of a larger program, I may be able to offer more assistance.
I hope this information was helpful to you.
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