On-line rapid workpiece label positioning method based on image processing
A technology of image processing and positioning methods, applied in image data processing, image analysis, instruments, etc.
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[0061] Below in conjunction with accompanying drawing and embodiment, the present invention will be further described:
[0062] The original image in this example is as figure 1 As shown, its background color is blue, using a kind of image processing-based online rapid positioning method for workpiece labels proposed by the present invention, from such as figure 1 Locate the workpiece label area in the image shown, and the specific steps are as follows:
[0063] Step 1: Determine the background color of the workpiece label, and perform the operation of step 2 for the original image containing the workpiece label with a blue background color.
[0064] Step 2: Obtain the red, green, blue (RGB) color space values of the original image, and convert the red, green, blue color space values of the image to the lightness, hue, and saturation (YUV) color space using the formula (1) The U component gray value in the value, k in the formula (1) 1 =0.14713,k 2 =0.28886, the result...
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