pliman 0.3.0

New functions

• image_autocrop() for automatic image cropping.
• image_filter() to perform median-based filtering.
• image_contrast() to improve contrast by performing adaptive histogram equalization
• object_coord() to get the object coordinates and (optionally) draw a bounding rectangle around multiple objects in an image.
• object_id() to get the object identification in an image.
• object_isolate() to isolate an object from an image.
• prop_segmented() to perform (iterative) image segmentation with pixels proportion.

Minor improvements

• New argument filter in count_objects() and prop_segmented().