Will, care to share the method ? Perfectly all right if its proprietary.
Thanks
Nothing complicated. I move the camera during the exposure--I shoot at ISO 100 at f/22 or f/32 (I don't worry about the loss of detail through diffraction
). The type of movement is important and it is relative to the shutter speed. For me, it is a tricky technique because I do not crop my images, so there is a bit of practice and a bunch of luck. To process the RAW image usually require changes the the curve as well as controlling the colors through channel mixing with saturation and luminance--the image will have a loss of contrast and saturation because of the motion..
Once the RAW is open, to get the negative image, but positive colors, simply invert the curve of the image and then rotate the colors in the hue, saturation, and brightness palette 180 degrees with the hue slider. (You can also do this by changing to Lab color space and simply inverting the luminance channel, but then you really need to go back to an RGB space for printing and display, so it is more complex.) From there you can adjust the curve as required to balance the tones.