Red and Blue

by Gordon

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I am seeing warm highlights and cool shadows. I opened the image in Photoshop and sampled a few areas that seemed like they were neutral in the original scene (blacks, grays whites). Its hard to be exact because I am only assuming the original color, plus there looks to be a lot of color filtration on the room lights. I sampled the guy in image #4's ...


The effect you are seeing is called Bokeh. It is how a lens renders out of focus highlights. While glass aberrations and coatings play a part, the blurred highlights tend to take on the shape of the aperture. They are, after all, basically the inverse of a shadow cast by the aperture into the film or sensor. Since the effect is heightened by shallow depth ...


A few thoughts. the depth of focus is quite small: this is shot with a low f-number (probably < 4) different drops have different degrees of "out of focus" (there are some drops that look like they are almost in focus) many of the drops are not perfect circles Based on these three observations, I am concluding that not all the drops were the same ...


I've done similar through rain spotted windows before, so basically the way I would tackle this is with a sheet of clear glass, perhaps from a picture frame, treated with something like Rain-X so that water will bead and then spray it with some water. You could also probably use something like glycerin. Then, basically, shoot through the glass.


You mean something like this? What I did was searched for simply "satin" on Google, found a random image of a satin-like texture, and downloaded it. It doesn't matter what color it is. Once I imported it into Gimp, I converted it to greyscale with the Colorize effect (unless you still want the color, then don't do that step). Then I dragged in any old ...


I asked a while ago how to do that in Photoshop better. It has, in current versions, a depth-mapped dof lens-effect simulator, and an automatic "select what's in focus". A fully automated thing would do it the same way but punt on the depth mapping. A program for Android platform cameras has you move the camera up and over while it's looking, so it figures ...


The local contrast can be used to determine the region that is not in focus, and also you can determine by how a certain part of the picture is out of focus. One can then apply a blur that depends on the local contrast so that the more some region is out of focus, the more it will be blurred.


There are 14 points to the star. This points to one specific option of doing it in camera. The lens has 7 blades. The diffraction spikes formed by the lens form at two spots for each blade, one major one and one minor one 180 degrees from the major one. You will notice that every other star point is shorter than its neighbors. As I said, this points to ...

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