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About the Image Inspection Results

When converting a raster image Scan2CAD will first inspect the image to find any potential problems which could cause a less accurate conversion.

The image inspection begins whenever you start a vectorization and/or OCR by clicking the ‘Run’ button on the Vectorization Settings dialog. 

What to do when your image has failed an Image Inspection

You will only see the Image Inspection Results dialog if your raster image has failed one or more of the checks.

Scan2CAD will list the problems that it has found with the image. 

In the majority of cases you should fix the issues before continuing to the conversion.

Remember: Whatever exists in the image will be converted to vector. Therefore cleaning an image is always beneficial if you want to achieve the best conversion results.

Result Recommendation
This image has n colors. Consider reducing them.  The fewer the colors, the better the expected conversion results. In most cases an image can be represented as 2 colors; black and white (monochrome). You can reduce your image to black and white using the ‘Threshold’ tool in Raster Effects. If you need extra colors you can use the ‘Segment’ tool to reduce the colors.
This image contains n speckles. Consider removing them. Speckles are small clusters of black pixels. These are typical in low quality images. Use the ‘Remove Speckles’ tool in Raster Effects to reduce the speckles. Please note: this number could include ‘false positives’ for example a ‘.’ text character could be identified as a speckle. Keep this in mind when removing speckles. 
This image contains n holes. Consider removing them. Holes are the opposite to speckles. They are clusters of white pixels encapsulated in colored areas. These are typical in low quality images. Use the ‘Remove Holes’ tool in Raster Effects to reduce the holes. Please note: this number could include ‘false positives’ for example the center part of an ‘o’ text character could be identified as a hole. Keep this in mind when removing holes.

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