1. A software interface for breast cancer screening and detection, comprising: a visualization screen where a thermal image of at least one breast of a subject is displayed, pixels in said displayed thermal image having a highest temperature value being displayed in a first color and pixels having a lowest temperature value being displayed in a second color, pixels with temperature values between said lowest and highest temperature values being displayed in gradations of color between said first and second colors; and a plurality of selectable software objects at least comprising: an isotherm view object which enables a display of contour lines on said thermal image displayed on said visualization screen, said contour lines bounding pixels in said displayed thermal image having substantially similar temperature values; a region of interest object which enables any of: a manual and an automatic selection of at least one region of interest in said displayed thermal image; and a screening object which implements a tumor detection method that effectuates any of: a manual and an automatic determination that tissue within said region of interest is one of: cancerous and non-cancerous tissue.