Assertion failed (ssize.width > 0 && ssize.height > 0) in resize after recompiling dlib

• face_recognition version: Latest
• Python version: 3.5
• Operating System: Ubuntu 14.06

Description

I recompiled dlib to compensate for my caveman cpu which doesn't support AVX instructions. Afterwards I run the face_rec_webcam_faster and i'm met with the error below

What I Did

usr/bin/python3.5 "/home/deeplearning/Desktop/face_recognition examples/facerec_from_webcam_faster.py"


`OpenCV Error: Assertion failed (ssize.width > 0 && ssize.height > 0) in resize, file /home/deeplearning/opencv-3.2.0/modules/imgproc/src/imgwarp.cpp, line 3492
Traceback (most recent call last):
  File "/home/deeplearning/Desktop/face_recognition examples/facerec_from_webcam_faster.py", line 31, in <module>
    small_frame = cv2.resize(frame, (0, 0), fx=0.25, fy=0.25)
cv2.error: /home/deeplearning/opencv-3.2.0/modules/imgproc/src/imgwarp.cpp:3492: error: (-215) ssize.width > 0 && ssize.height > 0 in function resize`
Process finished with exit code 1

Start with facerec_from_webcam_faster.py, especially line 31 where cv2.resize(frame, ...) raises the assertion, and run the webcam example in the reported Ubuntu and Python environment. Inspect the frame source and the OpenCV/dlib setup before the resize call. Done means identifying and documenting the cause of the empty frame or providing a verified fix for this example.