pwplus7

Is Cimg function map() OK ??

1

The for(ff..) loop in the code below generates run time error: Failed to allocate memory (22.1 Gio) for image (366,366,1,177147). terminate called after throwing an instance of 'cimg_library::CImgInstanceException' what(): [instance(0,0,0,0,(nil),non-shared)]...

cimg_forXY(img,x,y) version CImg 2.91

2

Can't figure out why this code runs OK : #include "CImg.h" using namespace cimg_library; typedef unsigned char u8 ; int main (int argc,char **argv) { u8 m= 0; int del...

What exactly does img.RGBtoXYZ() do ?

5

If img has pixel data ordered with RGB format i.e. R1,G1,B1, R2,G2,B2, ... ?? Is img.RGBtoXYZ() supposed to change the data ordering to CImg format i.e. R1,R2,R3... G1,G2,G3... B1,B2,B3...

unsigned int cc[3]= {0xff,0x00,0x00} ; img.fill(0xff).draw_circle ( W/2, H/2, 60, cc, 1.0, ~1); disp.display(img).wait(3000) ; for (k=0; k

unsigned integer pattern=~0 drawing pattern

2

These words appear in numerous places in the Cimg PDF reference document andt is defined as an integer whose bits determine a drawing pattern ... But no where is it...

CImg img = CImg (401,401,1,3), cmap= CImg (256,1,1,3); CImgDisplay disp(img,"Julia Fractal"); //{real,imag} Julia constants const double Jri[7][2] = { { 0.317, 0.029 }, { -0.348827, 0.607167 }, { -0.786268, 0.169728...

CImg reference pdf file Section 6.6.4.5 Example codes CImg src("image_color.jpg"), dest(src,false); // Image definitions. typedef unsigned char uchar; // Avoid space in the second parameter of the macro CImg_5x5x1 below....

num_complex users should be allowed to write let mut x = (1.0, 2,0)_c64

4

...

examples provided in crate lodepng fail greatly underestimate its abilities. Here's just one example.

1

```rust #![allow(non_snake_case)] use lodepng::* ; use std::process::Command; // used to execute OS commands that calls a PNG image viewer fn main() { // PNG encode a simple tri-color image const...