The variable visual acuity nature of human vision across fovea and periphery prompted the need to study the differential magnification method as compared with the traditional linear magnification. With differential magnification, outer-area objects were magnified at a level higher than the inner-area objects. An application software was specially developed by the authors previously for the exam...

The variable visual acuity nature of human vision across fovea and periphery prompted the need to study the differential magnification method as compared with the traditional linear magnification. With differential magnification, outer-area objects were magnified at a level higher than the inner-area objects. An application software was specially developed by the authors previously for the exam...

A blurry background due to shallow depth of field is often desired for photographs such as portraits, but, unfortunately, small point-and-shoot cameras do not permit enough defocus because of the small diameter of their lenses. We present an image-processing technique that increases the defocus in an image to simulate the shallow depth of field of a lens with a larger aperture. Our technique es...

A new technique for image magnification using the theory of fractals is proposed. The technique is designed assuming self transformability property of images. In particular, the magnification task is performed using the fractal code of the image instead of the original one resulting in a reduction in memory requirement. To generate the fractal codes, Genetic Algorithm with elitist model is used...

STUDY DESIGN Prospective study. PURPOSE The main purpose of this study was to clarify the range of magnification errors on digital plain radiographs and to determine if there is a correlation between the body mass index (BMI) of a patient and the magnification error. OVERVIEW OF LITERATURE Most clinicians currently use digital plain radiography. This new method allows one to access images a...

Leaf vein length per unit leaf area (VLA; also known as vein density) is an important determinant of water and sugar transport, photosynthetic function, and biomechanical support. A range of software methods are in use to visualize and measure vein systems in cleared leaf images; typically, users locate veins by digital tracing, but recent articles introduced software by which users can locate ...