Sharp IV-S20 User Manual

Contents

9-101Object identification (labeling) by binary conversion9Continued from the previous pageContinued on the following pageMenu Setting details1 MEAS WINDOW TYPE(measurement window)2 MEAS WINDOW POSIT(position of measuringwindow)3 MASK WINDOW TYPE4 MASK WINDOW POSIT(mask window position)5 THRESHOLD VALUE6 INVERT B/W(black and white inversion)7 BINARY PROCESS(binary conversion)8 BOUDARY PROCESS(boundary processing)9 LABEL ORDER0 IMAGE PRE-PROCESS(image pre-processing)Set the upper and lower limits for binary conversion within the range of 0 to 255.- See setting threshold values in shared settings on page 9·7Set the size and position of the window in units of 1 pixel.· If a circle or ellipse is selected in item 1, then the two variables you need toset are center and diameter.Decide whether a mask window will be employed and if so which type (rectangular, round orelliptical).· A mask window exists inside the boundary of the measurement window and screens outthose parts of the image which are not needed in the measurement process.Select the measurement window type: RECTANGLE (rectangular), CIRCLE (circular)or ELLIPSE (ellipse).Set the size and position of the mask window (which is framed with a dotted line) in units of1 pixel.· If a circle or ellipse was selected in item 1, then the two variables you need to set arecenter and diameter.· It is possible to enter dimensions that make the mask window bigger than themeasurement window.1MEAS WINDOW TYPE RECTANGLE CIRCLE ELLIPSE2MEAS WINDOW POSIT MOVE UP.L(224,208) LO.R(287,271)3MASK WINDOW TYPE NO RECTANGLE CIRCLE ELLIPSE4MASK WINDOW POSIT MOVE UP.L(224,208) LO.R(287,271)5THRESHOLD VALUE U.LM 255 L.LM 100(0~255)6INVERT B/W NO YES7BINARY PROCESS FIXED THRSHOLD-ADJ (VAR-DIFF VAR-RATE)8BOUNDARY PROCESS VALD INVLD9LABEL ORDER SACN-ORDER SIZE ORDER0IMAGE PRE-PROCESS OFF SMOOTH EDGE-EMPHASISALL-EDGE HORZ-EDGE VERT-EDGEqBINARY NOIS FILTR NO EXP. CONTR. CONTR. EXP.wNUM. OF FILTR PASS EXPD.0(0~5) CONTR0(0~5)eAREA FILTER 000000PIXEL LOWER LIMITrUPPER MENUSelect whether to invert the black and white in the image: YES or NO.· NO means the white area will be measured after the image has been converted to binaryvalues.· YES means the black area will be measured after the image has been converted to binaryvalues.Select either fixed or threshold value correction as the binary conversion processingmethod. (VAR-DIFF or VAR-RATE).- See methods for binary conversion in shared settings on page 9·8.Enable or disable boundary processing.- See setting the window boundary in shared settings on page 9·7.· When disabled, a workpiece contacting the window will not be measured.Select the order for labeling objects.- See order of labeling in shared settings on page 9·8.Select a method for pre-processing image data.See pre-processing in shared settings on page 9·9.· Item 4 will be displayed unless item 3 is set to "NO."q BINARY NOIS FILTR(eliminating binary noise)e AREA FILTERr UPPER MENUAfter the labeling, the area filter is a function used to identify small islands whose area isless than a specified amount. It eliminates them from the object which is being measured.Set the maximum number of pixels. Enter any number from 0 to 245760.· To enter number, select e AREA FILTER using up and down keys, and press the SETkey twice. Select a required digit using the left and right keys, and select the requiredfigure using the up and down keys.w NUM. OF FILTR PASS(the number of noiseelimination cycles)Select a method for eliminating binary noise.- See methods for eliminating noise from binary images, expansion/contractionand eliminating binary noise in shared settings on page 9·10.Set the number of cycles that the binary noise elimination process will be carriedout (0 to 5). Enter number of times for expansion and contraction, separately.This will return you to the [MEASURING COND] menu.This is how the display lookswhen item 3 MASKWINDOW TYPE (maskwindow) is set toThis is how the display lookswhen item 1 MEAS WINDOWTYPE (measurement window) isset to RECTANGLE.

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