Basic MFM Technique
- Open an image and convert it to the LAB color space
- Create a duplicate layer
- Open a curves dialog box (either an adjustment layer or using the "image-adjustments" command
- The next instructions will assume your curve display is dark at
the lower left and light at the upper right. This is the default
for RGB and for LAB. If that is not true you will have to adjust
the instructions for having that reversed.
- For the Lightness channel pick a point in the important part of
the image that has approximately neutral lightness and set an anchor
point there using ctrl-click. (Alternatively set an anchor
point on all channels with shft-ctrl-click.) This will be
used as a pivot point.
- Move the upper right (light) end of the curve half way to the pivot point. This will make the image very high contrast.
- Go to the a channel and pick a pivot point (if you have not done so.)
- Move the right (light) end of the curve toward the center until
the left (dark) end of the curve snaps to the bottom and hugs the
- This should cause parts of the image to go very high magenta and
other parts to go very high green. If it does not do this move
the pivot point to the left or right until it does.
- Now go to the b channel and repeat the same procedure you did for
the a channel. You should now have parts of the image going
yellow and other parts going blue.
- Click OK. You now have the Man From Mars image.
- Reduce the opacity of the MFM layer until the image looks good. This probably will be about 25%, more or less.