i have this error

[OoAnikioO]

in colab

error: OpenCV(4.1.2) /io/opencv/modules/imgproc/src/resize.cpp:3720: error: (-215:Assertion failed) !ssize.empty() in function 'resize'

[StephenHnilica]

I have the same error.

[BillarySquintin]

Ok I've figured out the solution. This issue is related to the files not being able to be retrieved from Google Drive.

In the "Download models" cell, you have to make a shortcut of the models in your own GDrive and copy them into their respective folders in the Colab instance storage.

The missing model that's causing this issue is the last one in that cell, https://drive.google.com/uc?id=1vwm4BcAKISQgcJLvTUcvesk73UIYdDMF. Because that model isn't available, the faces can't be parsed & there's no image for OpenCV to resize.

You have to copy that model to "Time-Travel-Rephotography/third_party/face_parsing/res/cp/"