Text you want to write on image. If you want some different positioning you have to modify the cairomoveto call.
Opencv Image Segmentation Tutorial For Extracting Specific
Opencv cv font example. Maybe you need a lookup table width per letter berak 2013 02 23 053304 0500 edit. In opencv2corehpp you can find this enum hersheyfonts. A vertex of the triangle lies on an edge of the rectangle so handlenested can be false and an intersection is still found. As you can see from the above example you can provide. It assumes that the target image is bgr. In opencv only a subset of hershey fonts are supported.
In computer vision the term image segmentation or simply segmentation refers to dividing the image into groups of pixels based on some criteria. Puttextcairomat hello world cvpoint2d5050 arial 15 cvscalar00255 false false. Image on which you can write the text. In the above example we have provided a sample image and wrote some text. A segmentation algorithm takes an image as input and outputs a collection of regions or segments which can be represented as a collection of contours as shown in figure 1. Only a subset of hershey fonts enum hersheyfonts fonthersheysimplex 0 normal size sans serif font fonthersheyplain 1 small size sans serif font fonthersheyduplex 2 normal size sans serif font more complex than fonthersheysimplex fonthershey.
It puts the texts center to the given point. Afaik hershey is a proportional font not all letters have same width. Distance along horizontal and vertical axis from top left corner of the image.
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