blob: 03d8c056d426b46f116e6783998995f293c8e172 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
#N canvas 0 87 993 482 10;
#X obj 6 38 cnv 15 430 15 empty empty empty 20 12 0 14 -228992 -66577
0;
#X obj 6 3 cnv 15 1000 30 empty empty empty 20 12 0 14 -233017 -66577
0;
#X obj 5 149 cnv 15 430 15 empty empty empty 20 12 0 14 -228992 -66577
0;
#X obj 530 134 bng 15 250 50 0 empty empty empty 0 -6 0 8 -24198 -1
-1;
#X obj 484 163 #in;
#X obj 484 191 cnv 15 42 17 empty empty empty 20 12 0 14 -241291 -66577
0;
#X text 8 180 In this section we will introduce some very basic functions
of the numeric operator \, one of the most common methods used for
image transformation.;
#X text 7 69 GridFlow performs high level grid processing \; in other
words its main function is the manipulation of images and video. There
are several ways to modify images in GridFlow \, some are very basic
while others are more advanced.;
#X text 9 234 Numeric Operators (numop): transform grids by applying
a mathematical operation to each pixel value.;
#X obj 6 455 cnv 15 1000 30 empty empty empty 20 12 0 14 -233017 -66577
0;
#X text 18 37 2.3 Image Manipulation;
#X text 17 148 Image Manipulation Using Numeric Operators;
#X text 8 277 To transform a grid the numop must first be given an
argument. That argument will be applied to every pixel in the grid.
The following three examples show some ways to give the numop an argument.
;
#X obj 460 38 cnv 15 430 15 empty empty empty 20 12 0 14 -228992 -66577
0;
#X text 465 62 Altering a grid by placing an argument directly into
the numop object.;
#X obj 560 343 cnv 15 42 17 empty empty empty 20 12 0 14 -241291 -66577
0;
#X obj 561 382 display;
#X msg 483 278 1 2 3 4 5 6 7 8 9;
#X obj 483 307 #import (3 3);
#X obj 484 382 display;
#X obj 10 38 cnv 15 430 15 empty empty empty 20 12 0 14 -228992 -66577
0;
#X text 22 37 2.3 Image Manipulation;
#X obj 10 38 cnv 15 430 15 empty empty empty 20 12 0 14 -228992 -66577
0;
#X text 22 37 2.3 Image Manipulation;
#X obj 672 103 cnv 15 15 15 empty empty empty 20 12 0 14 -259603 -66577
0;
#X obj 11 352 cnv 15 20 15 empty empty empty 20 12 0 14 -260818 -66577
0;
#X text 422 361 --->;
#X text 608 103 <-- step #1 : click here to load the image;
#X obj 672 133 cnv 15 15 15 empty empty empty 20 12 0 14 -259603 -66577
0;
#X obj 624 189 cnv 15 15 15 empty empty empty 20 12 0 14 -259603 -66577
0;
#X text 608 133 <-- step #2 : click here to view the image;
#X text 658 201 the value (42);
#X text 560 188 <-- step #3 : try altering the argument by changing
;
#X obj 691 276 cnv 15 15 15 empty empty empty 20 12 0 14 -259603 -66577
0;
#X obj 691 342 cnv 15 15 15 empty empty empty 20 12 0 14 -259603 -66577
0;
#X text 627 276 <-- step #1 : click here to load the grid;
#X text 20 8 2 Introduction to Images;
#X text 472 37 2.3 Patch Example 1;
#X text 9 352 Tip: To understand how pixels are affected by the numop
test out this numeric grid patch. Each grid value that is output is
multiplied by 42;
#X obj 484 220 #out window;
#X obj 484 191 # * 42;
#X text 727 360 by changing the value (42);
#X text 628 342 <-- step #2 : try altering the argument;
#X obj 560 343 # * 42;
#X text 14 463 GridFlow 0.8.4;
#X msg 484 106 open working.jpg;
#X connect 3 0 4 0;
#X connect 4 0 40 0;
#X connect 17 0 18 0;
#X connect 18 0 19 0;
#X connect 18 0 43 0;
#X connect 40 0 39 0;
#X connect 43 0 16 0;
#X connect 45 0 4 0;
|
