Forbidden Planet
10 Puns PDF Print E-mail
Wednesday, 09 March 2011 07:25

Received this in my e-mail this morning. I liked them.

  1. A vulture boards an airplane, carrying two dead raccoons. The stewardess looks at him and says, "I'm sorry, sir, only one carrion allowed per passenger."
  2. Two fish swim into a concrete wall. One turns to the other and says, "Dam!"
  3. Two Eskimos sitting in a kayak were chilly, so they lit a fire in the craft. Unsurprisingly it sank, proving once again that you can't have your kayak and heat it too.
  4. Two hydrogen atoms meet. One says, "I've lost my electron." The other says, "Are you sure?" The first replies "Yes, I'm positive."
  5. Did you hear about the Buddhist who refused Novocain during a root canal? His goal: transcend dental medication.
  6. A group of chess enthusiasts checked into a hotel and were standing in the lobby discussing their recent tournament victories. After about an hour, the manager came out of the office and asked them to disperse. "But why?", they asked, as they moved off. "Because," he said, "I can't stand chess-nuts boasting in an open foyer."
  7. A woman delivers a set of identical twins and decides to give them up for adoption. One of them goes to a family in Egypt and is named "Ahmal." The other goes to a family in Spain ; they name him "Juan." Years later, Juan sends a picture of himself to his birth mother. Upon receiving the picture, she tells her husband that she wishes she also had a picture of Ahmal. Her husband responds, "They're twins! If you've seen Juan, you've seen Ahmal."
  8. A group of friars were behind on their belfry payments, so they opened up a small florist shop to raise funds. Since everyone liked to buy flowers from the men of God, a rival florist across town thought the competition was unfair. He asked the good fathers to close down, but they would not. He went back and begged the friars to close. They ignored him. So, the rival florist hired Hugh MacTaggart, the roughest and most vicious thug in town to "persuade" the friars to close. Hugh beat up the friars and trashed their store, saying he'd be back if they didn't close up shop. Terrified, they did so, thereby proving that only Hugh can prevent florist friars.
  9. Mahatma Gandhi, as you know, walked barefoot most of the time, which produced an impressive set of calluses on his feet. He also ate very little, which made him rather frail and, with his odd diet, he suffered from bad breath. This made him a super calloused fragile mystic hexed by halitosis.
  10. finally, there was the person who sent ten different puns to friends, with  the hope that at least one of the puns would make them laugh. No pun in ten did.

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3D Pictures PDF Print E-mail
Friday, 04 March 2011 18:44

I was reminded (and inspired) by this site that it is possible to perceive a stereoscopic effect without using special glasses - simply alternating between two slightly different perspectives of the same image is sufficient.

I have no fancy setup or special lens, so everything was done by hand and tweaked using GIMP.

I would take one picture then move the camera slightly to one side (very little - a cm or so was plenty - perhaps too much). Then I would slightly rotate the camera (again, very little).

I then loaded the images into GIMP and overlaid them on two separate layers.

Performed edge detection on both of them and then used the move tool to align horizontal edges (it helps to have some good horizontal edges in the image) - necessary to make the top layer transparent (I used 50% opacity). I needed to do this because shifting the camera by hand meant that the images didn't overlap perfectly. You only need to move one image, not both.

Once I knew how much to move / shift an image, I went back to the original overlaid images and moved it by the same amount.

Then I cropped, the image. Resized. Converted it to an indexed image. And, finally saved as a GIF file.

Since I had two layers, GIMP asks if I wanted to flatten them (merge then together) or export them as an animated GIF. I chose animated GIF, set the delay to 50ms and the option to loop forever.

Looking these over, I think it is important to pick a reference point that remains in the centre of both pictures. When you take the first picture, note where the centre is, then, when you shift and angle the camera, make sure the centre point is the same.

Actually worked out quite well.

(My apologies, these are quite large images - the smallest a little over 500K and the largest a little over 1M)


My second attempt at 3D pictures. My favourite, marred only by one of the images being blurry.


My first attempt and proof of concept shots.


What happens when you move the camera too much.


This one is quite nice.


My fourth attempt. I focussed on aligning lines at the back of the image.


The same image as above, except I aligned the image based on lines at the front of the image.

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Ghostly Narcissism PDF Print E-mail
Sunday, 27 February 2011 17:56

I did these last night. I was inspired by cignoh's latest avatar attempt and wanted to see if I could achieve the same effect.

I had tried last year to cartoonify myself, but the result (while not horrible) left something to be desired.

The steps I followed (using GIMP) were:

(1) load my picture

(2) create a blank second layer

(3) trace the major lines in my picture (this is a little harder than it looks)

(4) coarsely pixelize (filters -> blur -> pixelize) the original image - nice big blocky pixels

(5) sampled colours from the pixelized image to floodfill the areas in my traced image

Over all, it worked a lot better than my attempt last year at cartoonifying.


However, I still though there should be a more mechanical way (i.e. avoiding having me draw / trace stuff) of doing it. So I played a little more and came up with this (as an intermediate result, but I liked it, so I kept it):


One thing I did was to (1) create duplicate layers of the image, (2) seriously blur one of the image, (3) do a difference of images, (4) invert the image. This resulted in a nice image as well.

The following illustrates the steps I took to achieving this:


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