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37 lines
1.1 KiB
Python
37 lines
1.1 KiB
Python
'''
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Contains all functions related to graphical display.
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Created on Nov 19, 2011
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@author: Julien Lengrand-Lambert
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@email: julien@lengrand.fr
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'''
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import sys
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import cv
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def display_single_image(img, name="Image", x_pos=0, y_pos=0, delay=0):
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"""
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Displays an image on screen.
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Position can be chosen, and time on screen too.
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Delay corresponds to the display time, in milliseconds.
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If delay =0, the Image stays on screen until user interaction.
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----
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Ex:
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img = cv.LoadImage("../data/tippy.jpg", cv.CV_LOAD_IMAGE_GRAYSCALE)
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display_single_image(img, "My Tippy", 0, 0, 100)
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"""
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#TODO: Still not implemented!
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if not isinstance(name, str):
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raise TypeError("(%s) Name :String expected!" % (sys._getframe().f_code.co_name))
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if (not isinstance(x_pos, int)) \
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or (not isinstance(x_pos, int)) \
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or (not isinstance(x_pos, int)) :
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raise TypeError("(%s) Int expected!" % (sys._getframe().f_code.co_name))
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cv.NamedWindow(name)
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cv.MoveWindow(name, x_pos, y_pos)
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cv.ShowImage(name, img)
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cv.WaitKey(delay)
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