# Rotate Camera Image only, blend with Image from Animation

Rotating an image is not normally a complicated matter. However, I have a somewhat complicated problem:

1. I get an image from a live camera
2. I read an image from an animation
3. I mix the images with blend and then show them on the screen

After a defect, the camera was replaced, but mounted upside down. I just wanted to rotate only the camera image using software before blending it … but how?

``````if(anima.available()){anima.read();}

camimg=camera.get(xd+xa,yd+ya,ww,hh);
camimg.resize(dw,dh);

aniimg=anima.get(0,0,anima.width,anima.height);
aniimg.resize(dw,dh);

aniimg.blend(camimg, 0, 0, dw, dh, 0, 0, dw, dh, MULTIPLY);
image(aniimg,0,0);
``````

One way:

I have written code in the past to flip, mirror, rotate etc.

`:)`

thanks, have found, works … flip two axis is like rotate 180 degree

``````PImage flip_img(PImage imx)
{
int wid = imx.width;
int hig = imx.height;
PImage ret = new PImage(wid,hig);

for(int x=0; x<wid; x++)
{
for(int y=0; y<hig; y++)
{
ret.set(wid - 1 - x, hig - 1 - y , imx.get(x,y));
}
}
return ret;
}
``````
1 Like

Another way:

``````String url = "http://learningprocessing.com/code/assets/sunflower.jpg";
PImage img;
PGraphics pg;

void setup()
{
size(400, 200);
image(img, 0, 0);

pg = createGraphics(img.width, img.height);
pg.beginDraw();
pg.translate(pg.width, 0);
pg.scale(-1, 1);
pg.image(img, 0, 0);
pg.endDraw();

image(img, 0, 0);
image(pg, width/2, 0);
noLoop();
}
``````

`:)`