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-
-
- Red Prince Flips 'n Rolls
- =========================
-
- by G. Adam Stanislav
- Whiz Kid Technomagic
- www.whizkidtech.net
- www.redprince.net
-
-
-
- Red Prince Flips 'n Rolls is a collection of 19 plugins for Photoshop and
- compatible image processing software for Windows 95 and later. The plugins,
- to work, need to be copied to whatever directory your image editing software
- expects to find the plugins. Or, depending on your software, you may create
- a Windows shortcut to the Program Files\Red Prince\plugins directory.
-
- Some software allows you to specify multiple plugin directories. In that case,
- it is highly recommended, you simply instruct your software to look into the
- Red Prince\plugins directory. That way you can selectively turn the plugins
- on and off as needed. That will also allow you to uninstall the plugins
- cleanly, should you ever decide to do that.
-
- Originally, the collection contained 5 plugins, described here:
- ===============================================================
-
- These plugins flip and roll the three color channels of 24-bit RGB pixels.
- Because there are three channels, they can be "sorted" in six ways:
-
- RGB, RBG, GBR, GRB, BRG, and BGR. Typically, software stores them in the
- RGB order, although occasionally they are stored in the BGR order.
-
- The Red Prince Flips 'n Rolls plugins simply change the order from RGB to
- any of the remaining five possible combinations by either flipping two
- channels or rolling one.
-
- Flipping means exchanging the position of two channels: Flipping red and
- green changes an RGB pixel to a GRB pixel, etc. There are three possible
- flips.
-
- Rolling means moving an end channel to the other end. In other words, rolling
- the red channel will change the order from RGB to GBR; rolling the blue
- channel changes to BRG.
-
- The effect of flipping and rolling can be undone quite easily, even if your
- software does not offer an "Undo" option: A flip is undone by running the
- same flip again. A roll is undone by running the other roll, or by running
- the same roll two more times.
-
- And, by the way, running two different flips successively produces the same
- result as one of the rolls; running the same roll twice in a row produces
- the same result as the other roll.
-
- Why would you want to flip and roll the channels? For one, if some format
- plugin interprets an image file incorrectly, and loads the channels in an
- improper order, use Red Prince Flips 'n Rolls to fix it.
-
- As unlikely as that is to happen (we should hope), flipping and rolling the
- channels results in an interesting change of the color scheme of an image,
- without changing the visual shape of any object present inside the image.
- In other words, use it as a subtle special effects tool.
-
- Added on 18-Nov-1999:
- =====================
-
- The "flops" change one, two, or all three RGB channels into their negatives.
- Thus,the "Flop All" plugin simply produces a negative image. The rest of the
- flops, however, result in some interesting color effects.
-
- Applying a flop for a second time reverses the effect of its previous use.
-
- There are seven flop filters in the collection: One for each channel (3),
- one for each combination of two channels (3) and one for all channels (1).
-
- Added on 19-Nov-1999:
- =====================
-
- Seven new plugins named "bit reverse." These will reverse the order of bits
- in one or more channels. That means, the least significant bit becomes the
- most significant, and vice versa.
-
- There is no computer graphics theory behind these. It was just something that
- is very easy to do in assembly language, and I was curious what effect it would
- have on the image.
-
- The effect depends on the image itself. If the image consists solely of pure
- black and pure white, nothing appears to happen. That is because black is
- expressed by all bits set to zero, and white by all bits set to one. Reversing
- their order produces the same number as before.
-
- Reversing the bits of other colors tends to make the image grainier. And, of
- course, reversing bits twice in a row cancels the effect. This is nice if your
- host does not support the "undo" feature. You can play with different levels of
- graininess, knowing you can safely return to the original image.
-
- As of this version, the software comes with a setup program, curtesy of
- MindVision Software. Please read the note at the end of this documentation.
-
- Source code
- ===========
-
- These plugins are written in assembly language, which makes them small and
- fast. Full source code is included. If you study the source code, you will
- notice that most of it is the same in all the plugins, only the things inside
- the innermost loop change. This is because the logic of writing a plugin is
- pretty much the same for all Photoshop filter plugins: The only thing that
- needs to be coded differently is the desired effect itself.
-
- Assembly language programmers who wish to write their own plugins are
- encouraged to use my code as a model for their own code. Just give me credit
- for it somewhere in your documentation.
-
- License
- =======
-
- These plugins are free. They are, however, protected by copyright law of
- the United States and international treaties. While I allow you to use these
- plugins for free, you are not permitted to further distribute the plugins. If
- you want others to have and use these plugins, just direct them to
- www.redprince.net, where they can download them for their own use. I reserve
- the right to change the conditions in the future.
-
- There is one condition for a specific use of these plugins: If any of them
- are used at any stage of producing a motion picture of any kind (such as
- film, video, TV production), the following statement must be included in the
- credits: "Special effects: G. Adam Stanislav". This statement must be in a
- size no smaller than most of other credits, and it must appear for a time
- period no shorter than most of other credits. If others are credited for
- special effects within the same motion picture, their names and mine may
- appear under a common heading. The statement must be legible. If the motion
- picture is produced, and its credits are given, in a language other than
- English, the "Special effects" heading may, and should, be in that language.
-
- I have tested the plugins under Corel Photo-Paint 8, Paint Shop Pro 6, and
- Adobe PhotoDeluxe Home Edition 3.0, on a system with 8 M of memory running
- Windows 95, and they worked properly. However, considering they are free,
- I cannot offer any guarantees, expressed or implied, that they will work on
- your system, nor can I offer technical support of any kind, including email
- support.
-
- Note:
- =====
-
- The installer for this product was created using Installer VISE from MindVision
- Software. For more information on Installer VISE, contact:
-
- MindVision Software
- 7201 North 7th Street
- Lincoln, NE 68521-8913
-
- Voice: (402) 477-3269
- Fax: (402) 477-1395
- E-mail: mindvision@mindvision.com
- http://www.mindvision.com
-
- This is, in my opinion, the best installer currently in existence. They make it
- for both Windows and the Mac. If you have written plugins you want to
- distribute as shareware or freeware, you should definitely take a look at their
- offer to shareware and freeware developers. They will probably let you use the
- installer for free.
-
- Of course, even if you develop commercial software, you should take a serious
- look at this installer. It is that good!
-