Glaring reduction for dynamic rearview mirror

Method for generating a glare-reduced image from images captured by a camera device of a subject vehicle, comprising:

• obtaining a short-exposure image and a long-exposure image captured by the camera device;
• generating a resulting high dynamic range (HDR) image based on the obtained short-exposure and long-exposure images;
• monitoring pixel values within both the short-exposure and the long-exposure images, each pixel value comprising at least an intensity value;
• identifying a light source region within both the short-exposure and the long-exposure images based on the monitored pixel values;
• identifying a glaring region around a perimeter of the identified light source based on calculated pixel ratios between the monitored pixel values of the long-exposure and the short-exposure images;
• modifying the identified glaring region upon the resulting HDR image with the respective identified light source region within the short-exposure image;
• applying HDR processing for obtaining optimal image quality for the resulting HDR image in all other regions not identified as the glaring region;
• and
• generating a glare-reduced image based on the modified identified glaring region upon the resulting HDR image.

An apparatus for generating a glare-reduced image from images captured by a camera device of a subject vehicle, comprising:

• the camera device capturing a field of view projecting away from the subject vehicle;
• and
• a processing device configured to:
• obtain a short-exposure image and a long-exposure image captured by the camera device,
• generate a resulting high dynamic range (HDR) image based on the obtained short-exposure and long-exposure images,
• monitor pixel values within both the short-exposure and the long-exposure images,
• identify a light source region within both the short-exposure and the long-exposure images based on the monitored pixel values,
• calculate pixel ratios between the monitored pixel values of the long-exposure and the short-exposure images,
• identify a glaring region based on the identified light source region and the pixel ratios,
• modify the identified glaring region upon the resulting HDR image with the identified light source region within the short-exposure image, and
• generate a glare-reduced image based on the modified identified glaring region upon the resulting HDR image.