COURSE                        : MSC ADVANCED ENGINEERING

LAB REPORT                : Machine vision

TITLE                        : Image processing Laboratory

OBJECTIVE         : A range of biscuit is investigated using morphological filter with erosion and dilation image processing techniques

PROCEDURES

  1. The Opus PC system is connected to frame grabber board, auxiliary frame processor board and machine vision system. Machine vision system JVC CCD lens 18-108/2.5 is used and aperture set to F4. The height of lens is set to 568mm. Lighting equipment: ring light of microscopic is set to maximum; sport light with diffuser is on. The output is display with Microvitech high resolution monitor

  1. Biscuit F is standard milk chocolate biscuit. Biscuit P is inadequately coated milk chocolate biscuit. Biscuit W is milk chocolate contaminated with white chocolate. Biscuit D is broken milk chocolate biscuit. The size of each biscuit is determined by the size of box and in pixel unit.(Table 1.3)
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  1. The Global lab software is opened. The Biscuit F is analyzed by following steps:

Preprocessing stage

Step 1: Main menu->Acquire->Passthrough->Freeze Frame

Analysis stage

Step 2: Main menu->Analysis->AOI Histogram->Box->Intensity (Histogram and Data obtained)

Step 3: Main menu->Analysis->Point Histogram->Point Info (Range without filter obtained)

Step 4: Main menu->Filtering->Morphological->Erosion & Dilation->Box (Filtering performed)

Steps 2 & 3 are repeated and new range with filter is obtained.

  1. The step 1 to Step 4 is repeated for Biscuit P, Biscuit W, Biscuit D and background. The range without filter and the range with filter are obtained and tabulated in Table 1.1. ...

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