forked from s444420/AL-2020
99 lines
2.2 KiB
Python
99 lines
2.2 KiB
Python
|
|
import pygame
|
|
import numpy
|
|
|
|
import opencv
|
|
#this is important for capturing/displaying images
|
|
from opencv import highgui
|
|
|
|
|
|
|
|
def list_cameras():
|
|
"""
|
|
"""
|
|
# -1 for opencv means get any of them.
|
|
return [-1]
|
|
|
|
def init():
|
|
pass
|
|
|
|
def quit():
|
|
pass
|
|
|
|
|
|
class Camera:
|
|
|
|
def __init__(self, device = 0, size = (640,480), mode = "RGB"):
|
|
"""
|
|
"""
|
|
self.camera = highgui.cvCreateCameraCapture(device)
|
|
if not self.camera:
|
|
raise ValueError ("Could not open camera. Sorry.")
|
|
|
|
|
|
def set_controls(self, **kwargs):
|
|
"""
|
|
"""
|
|
|
|
|
|
def set_resolution(self, width, height):
|
|
"""Sets the capture resolution. (without dialog)
|
|
"""
|
|
# nothing to do here.
|
|
pass
|
|
def query_image(self):
|
|
return True
|
|
|
|
def stop(self):
|
|
pass
|
|
|
|
def start(self):
|
|
# do nothing here... since the camera is already open.
|
|
pass
|
|
|
|
def get_buffer(self):
|
|
"""Returns a string containing the raw pixel data.
|
|
"""
|
|
return self.get_surface().get_buffer()
|
|
|
|
def get_image(self, dest_surf = None):
|
|
return self.get_surface(dest_surf)
|
|
|
|
def get_surface(self, dest_surf = None):
|
|
camera = self.camera
|
|
|
|
im = highgui.cvQueryFrame(camera)
|
|
#convert Ipl image to PIL image
|
|
#print type(im)
|
|
if im:
|
|
xx = opencv.adaptors.Ipl2NumPy(im)
|
|
#print type(xx)
|
|
#print xx.iscontiguous()
|
|
#print dir(xx)
|
|
#print xx.shape
|
|
xxx = numpy.reshape(xx, (numpy.product(xx.shape),))
|
|
|
|
if xx.shape[2] != 3:
|
|
raise ValueError("not sure what to do about this size")
|
|
|
|
pg_img = pygame.image.frombuffer(xxx, (xx.shape[1],xx.shape[0]), "RGB")
|
|
|
|
# if there is a destination surface given, we blit onto that.
|
|
if dest_surf:
|
|
dest_surf.blit(pg_img, (0,0))
|
|
return dest_surf
|
|
#return pg_img
|
|
|
|
|
|
|
|
if __name__ == "__main__":
|
|
|
|
# try and use this camera stuff with the pygame camera example.
|
|
import pygame.examples.camera
|
|
|
|
pygame.camera.Camera = Camera
|
|
pygame.camera.list_cameras = list_cameras
|
|
pygame.examples.camera.main()
|
|
|
|
|