sketch drawing book

　　Links to related papers: combining Sketch and Tone for Pencil Drawing ProductionThe first time to see "combining Sketch and Tone for Pencil Drawing Production" a article in two years ago, feel free to look at, think of the formula in the paper more, thought to achieve a certain degree of difficulty, did not go to scr

); %subplot (2, 5, a), Imshow (I0); End I0 = ((double (back)/255). ^ backdepth); %figure, Imshow (I0); I0 = uint8 (I0 * 255); Imwrite (I0, ' new_texture.jpg ');% begins calculation of P. ^β= J in β-matrix theta = 0.2; P = im2double (Imread (' new_texture.jpg ')); J = im2double (Imread (' tone.jpg '));% initialized to vector convenient calculation p = imresize (P, [H, W]); p = Reshape (P, h*w, 1); Logp = log (P); Logp = SPDiags (LOGP, 0, H*w, h*w); j = Imresize (J, [

outside to the inside. 5. Structure and composition Structure refers to the composition and construction of parts of an object itself. objects have internal and external components and structural relations, a part of each other connected interspersed, overlapping, and so on, which determines the shape of the object. In the sketch training, some subjective components and expressive techniques are added to the structure, and the body structure reflec

When you open a new part, the first feature you generate is a sketch. A sketch is the basis of a 3D model. A sketch generates an entity after being stretched, rotated, scanned, or loosed, and then modifies the entity. This is the general modeling process of SolidWorks. To insert a sketch, you must first determine its

We know that sketch is an important part of the designer's workflow. This article collects some sketch tools developed with JavaScript and HTML5 Canvas, which show that HTML5 is indeed an exciting markup language. If you find a new drawing tool developed based on HTML5 Canvas, please share it with you here. 1. Mr. Doob's Harmony If you like graffiti, you can try

PS Create your sketch-hand drawing PS: You can also make your own sketch Oh. Many people like to take pictures, of course, many people also like to have their own design sketch, but suffer from their own painting skills limited, and can not draw a vivid, rich aesthetic sketch