SOD C/C++ API Reference - Image Processing
Syntax
void sod_image_draw_circle(sod_img im, int x0, int y0, int radius, float r, float g, float b);Description
Draw a single circle via the Midpoint Circle Algorithm on an input image. This function is very useful when working with the CNN/Realnet interfaces for example to mark a region of interest (i.e. face) coordinates. When done, you can save the output on disk via sod_img_save_as_png() for instance.
Typical Output
Parameters
sod_img input
The input image to be processed. The image can be loaded from disk using sod_img_load_from_file(), from memory (i.e. network socket) via sod_img_load_from_mem() or dynamically created via sod_make_image().
int x0
The x-coordinate, in logical units of the center of the circle.
int y0
The y-coordinate, in logical units of the center of the circle.
int radius
The radius, in logical units of the circle.
float r
Red color value in a typical RGB colorspace. This interface handle grayscale colorspace also.
float g
Green color value in a typical RGB colorspace.
float b
Blue color value in a typical RGB colorspace.
Return Value
None.
Example
Checkout the introduction course, the C/C++ samples on the download page or refer to the SOD Github Repository.
See also
sod_canny_edge_image • sod_image_draw_bbox • sod_hilditch_thin • sod_hough_lines_detect • sod_rotate_image • sod_crop_image.
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