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