Application Image-based Algorithm For Automatic Generation Of Pencil Drawing And Implementation

Corresponds with photorealistic rendering as a graphics rendering，non-photorealisticrendering style of art has always been the pursuit of simulation and reproduction. From the1990s to now，non-photorealistic rendering graphics as an independent branch has been rapiddevelopment. The scope of design is no longer a purely computer-aided art of drawing，butalso related to movies，education，games，entertainment，animation and other industries.Pencil drawing style，in the field of art also called sketch style，from the charcoal，pencils，pens，etc.，in order to draw images of light and dark lines monochrome painting. InChina can also be called monochromatic watercolor sketch，sketch lines are usually used todescribe the image，constitute an important part of pencil drawing is the line. So in manyexisting algorithms pencil drawing，sketch rendering methods can be divided into two parts，contour detection and rendering，texture rendering.In this thesis，the main work is to achieve a solution that could render input image into apencil drawing image，based on the realization optimization algorithm to improve thealgorithm can be more close to reality after the artist painting style，so to achieve a better andmore efficient rendering．Operators can be generated with the thickness，length，many changes in direction can beused for the different characteristics of different parts of the operation of operator; algorithmflow，the longer is the use of an operator to detect the same rendering，but by thick longoperator detection，fine，short operator rendering method，greatly increasing the imagedelicate sense and realistic style; texture generation method using a self-generated sketchtexture，texture and material of the original algorithm using the same picture more，andtexture can be improved entirely generated by an algorithm， making the outline andbackground can have a similar but not the same style，making the picture more harmoniousrendering．...