Photoshop Contest Forum Index - Featured Pic - File size... what a waste! - Reply to topic
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Kansas
Location: Kansas
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Sun Dec 04, 2005 12:00 am Reply with quote
Ok.. First off does this post go away? It has sooo much good info in it I want to make sure it is there for a reference.
Also, I thought I was well educated after reading it and tried to upload a little pictue for my profile.
It says no more than 70X70 and no more than 6kb.
I had a picture all ready to go and by the time I used those settings you couldn't even see it.
Just when I think I understand...oops.
I'm also wondering how you guys do the clever movement of your pictures in the signature area and if I'm just going for a boring snapshot how on earth do I save it to such a small setting and still be able to clearly see the picture.
This is a guess... I should have done the settings before I did the picture?...I'll go back and try that while I hear your feedback..
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Eve
Site Moderator
Location: Planet Earth
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Sun Dec 04, 2005 1:20 am Reply with quote
I think your asking about an Avatar...that thingy that sums up all of your parts...lol.
Some are clever and some are annoying like mine. Those avatars have to be a specified size and are uploaded directly from your computer unlike a signature....See FAQs
Hope that helps....
Oh, yea, once you post 10 entries, please use your 25 votes to encourage others to keep doing their best. It's not good manners to suck up votes without doling them out. And, let's not forget, 'tis better to give than receive.
_________________ If you're going to walk on thin ice, you might as well dance!
thank u Tawiskaro
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ReinMan
Location: Kingston, ONTARIO, CAN
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Sun Dec 04, 2005 10:25 pm Reply with quote
I was just talking to Cain (we were talking about how Abel was SUCH a whiner and all THAT stuff) and he sez that Adam is doing well, but he is finding the Barcelona women rather COLD.
_________________
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THIS SITE REALLY DOESN'T EXIST
the way our EGO THINKS IT MIGHT!
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ScionShade
Location: VeniceFlaUS
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Mon Dec 05, 2005 12:12 am Reply with quote
OK! Who took my apple? It was sitting..riiiiiiight here. hmmmmmm?
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Michel
Location: Montreal, Canada
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Thu Dec 15, 2005 12:30 am Reply with quote
I finally decided to make a Flash tutorial on how to save your entry to have the best possible quality.
Here is the LINK
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supak0ma
Location: Photoshop Nation
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Thu Dec 15, 2005 5:11 am Reply with quote
Quite thorough from howstuffworks.com
The Printing Process
There are nine main types of printing processes:
* offset lithography - what we are exploring in this article
* engraving - think fine stationery
* thermography - raised printing, used in stationery
* reprographics - copying and duplicating
* digital printing - limited now, but the technology is exploding
* letterpress - the original Guttenberg process (hardly done anymore)
* screen - used for T-shirts and billboards
* flexography - usually used on packaging, such as can labels
* gravure - used for huge runs of magazines and direct-mail catalogs
Offset lithography is the workhorse of printing. Almost every commercial printer does it. But the quality of the final product is often due to the guidance, expertise and equipment provided by the printer.
Offset lithography works on a very simple principle: ink and water don't mix. Images (words and art) are put on plates (see the next section for more on this), which are dampened first by water, then ink. The ink adheres to the image area, the water to the non-image area. Then the image is transferred to a rubber blanket, and from the rubber blanket to paper. That's why the process is called "offset" -- the image does not go directly to the paper from the plates, as it does in gravure printing.
Now, let's look at the steps in the printing process.
Step One: Pre-Press Production
Before the job can be printed, the document must be converted to film and "plates." In the case of How Stuff Works Express, film negatives are created from digital files. Images from the negatives are transferred to printing plates in much the same way as photographs are developed. A measured amount of light is allowed to pass through the film negatives to expose the printing plate. When the plates are exposed to light, a chemical reaction occurs that allows an ink-receptive coating to be activated. This results in the transfer of the image from the negative to the plate.
Color negatives are "stripped" together for each page.
A blue-line print is made from "stripped-up" negatives and is used to check image position before printing.
There are different materials for plates, including paper (which produces a lower-quality product). The best plate material is aluminum, which is more costly.
Each of the primary colors -- black, cyan (blue), magenta (red), and yellow -- has a separate plate. Even though you see many, many colors in the finished product, only these four colors are used (you'll also hear this called the four-color printing process -- it's a little like the three-color process used in television).
The human eye blends four individual color dots into a single color.
We'll talk more about this later as we explore color and registration control.
Step Two: The Press Run
The printing process used to print How Stuff Works Express is called web offset lithography. The paper is fed through the press as one continuous stream pulled from rolls of paper. Each roll can weigh as much as 2,000 pounds (1 ton). The paper is cut to size after printing. Offset lithography can also be done with pre-cut paper in sheetfed presses.
Web presses print at very high speeds and use very large sheets of paper. Press speeds can reach up to 50,000 impressions per hour. An impression is equal to one full press sheet (38 inches x 22 and three-fourths inches), which is 12 pages of How Stuff Works Express.
Web-press paper-feed system showing the double roll of paper just before the splice from the smaller roll (on the bottom) to the larger roll. Each roll of paper weighs nearly 1 ton and is sufficient for 9,000 impressions (72,000 printed pages).
Even when a 1-ton roll of paper runs out, the presses do not stop rolling. Rolls can be spliced together as the web press is running by using festoons. Festoons are a series of rollers that extend up into a tower. A few moments prior to the splice occurring, the festoons will move up into the tower, pulling in large amounts of paper. At the moment the splice occurs, the rolls of paper stop rotating for a split second, at which point the paper is taped together automatically. As the newly spliced roll begins to pick up speed, the festoons begin to drop out of the tower at a rate predetermined by the speed at which the press is operating. The press operator never has to adjust the press controls during this operation.
Festoons are a series of rollers used to adjust tension before and after the splice from a small, fast-turning roll of paper to a large, slow-turning roll of paper.
The press has to maintain a constant balance between the force required to move the paper forward and the amount of backpressure (resistance) that allows the paper to remain tight and flat while traveling through the equipment.
The Inking Process
Ink and water do not mix -- this is the underlying principle of offset lithography. The ink is distributed to the plates through a series of rollers. On the press, the plates are dampened, first by water rollers, then ink rollers. The rollers distribute the ink from the ink fountain onto the plates.
The image area of the plate picks up ink from the ink rollers. The water rollers keep the ink off of the non-image areas of the plate. Each plate then transfers its image to a rubber blanket that in turn transfers the image to the paper. The plate itself does not actually touch the paper -- thus the term "offset" lithography. All of this occurs at an extremely high speed.
Close-up of rollers. The top series of rollers transfers the yellow ink to the rubber "blanket" cylinder (bottom roller), and then to the paper that is passing horizontally under the "blanket."
The paper is left slightly wet by all of the ink and water being applied. Obviously, there is a risk of the ink smudging. The smudging is avoided by having the paper pass through an oven. The oven is gas fired, and the temperature inside runs at 350 to 400 degrees Fahrenheit (176 to 206 degrees Celsius).
The paper is run through a long oven at about 375 degrees Fahrenheit (190 degrees Celsius). This dries (sets) the ink so it won't smudge.
Immediately after leaving the oven, the paper is run through a short series of large metal rollers that have refrigerated water flowing through them. These chill rollers cool the paper down instantly and set the ink into the paper. If this were not done, the ink would rub off on your fingers.
Color and Registration Control
Color and registration control is a process that is aided by the use of computers. Registration is the alignment of the printing plates as they apply their respective color portion of the image that is being printed. If the plates do not line up perfectly, the image will appear out of focus and the color will be wrong. A computer takes a video image of registration marks that have been placed on the press sheet. Each plate has its own individual mark. The computer reads each of these marks and makes adjustments to the position of each plate in order to achieve perfect alignment. All of this occurs many times per second while the press is running at full speed.
The RCS (Register Control System) provides constant adjustment of the press. The computer works in concert with a strobe light and video camera to constantly process information about color registration. Incredibly small adjustments, measured in the 1,000ths of inches, are automatically made to the color rollers to ensure proper registration.
Color control is a process that involves the way in which the ink blends together, and is tied closely to the plate registration. The amount of ink that is released into the units depends on how much ink is needed to achieve a desired look. The ink is adjusted via the control panel that is part of the overall control console. Prior to being placed on the press, the plates are scanned and the data is then transferred to a micro cassette. This serves as the "master" that directs the release of ink to pre-set values.
The web offset press that prints How Stuff Works Express is 115 feet long and weighs 500,000 lbs -- more than 150 Toyota Camrys! The process starts with a huge roll of paper that is fed through four banks of rollers. Each roller adds one color at a time, starting with black, then cyan (blue), magenta (red) and finally yellow.
Press speeds can run up to 50,000 impressions per hour.
Print quality is checked frequently by the press operator.
The bindery is where the printed product is completed. The huge rolls of now-printed paper are cut and put together so that the pages fall in the correct order. Pages are also bound together, by staples or glue, in this step of the process.
In the case of How Stuff Works Express, a machine called a stitcher takes the folded printed paper (called press signatures) and collates them together. Then stitches (staples) are inserted into the signatures, binding them together.
The "stitcher" gathers, assembles and staples the magazines (called books) before they are sent for final trimming. This bank of 14 units can process about 9,000 books per hour!
The final components in the stitcher machine are the knives, which trim the paper to the final delivered size. The product is then ready to be shipped to the end destination.
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sage
Location: Hudson, Canada
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Thu Dec 15, 2005 11:58 am Reply with quote
The beauty about digital printing is that it eliminates the use of film, and technology now allows for spot colours to be used.
Nice tut, Michel!
_________________ "Life is what happens to you while you are busy making other plans." John Lennon
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Patre
Location: Glendale, Az.
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Thu Dec 15, 2005 12:15 pm Reply with quote
Thanks Michel and supakoma for the tutorial and information on the printing process..
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Queen La Tiff
Location: MI
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Thu Dec 15, 2005 12:33 pm Reply with quote
This thread is great! I try to act like a hot-shot, but, because I'm self-taught with Photoshop, I have big gaps in my knowledge. I had noooo idea about how to use "save for web" and that's really gonna help. In the past I've been having to go back three and four times after getting error messages, trying to resize, and submitting again. It's a bunch of grade-A bolognium, so thanks for that.
Here are two technical questions, one along the same lines and one not really:
1. What about gifs? I see people posting gifs that look so good, but any time I have posted one, I have to make it the size of a postage stamp in order to make it small enough! Is there a similar trick when creating gifs? The only thing I can think to do is "purge all" in PS before saving each frame as a gif...not sure if that even makes a difference.
2. I'm about to try to take the next step, and learn both flash and dreamweaver. I don't know anything at all about HTML. What order should I learn these programs in--flash first, or dreamweaver first? And would it help me to learn the basics of HTML before starting to learn either program? I've got version 8 of both programs, but it's clear that self-teaching isn't gonna work on these...I open the program and have no idea what to do next. I got the book Flash for Dummies, but it's making me feel even stupider, if that's even possible.
My husband's going to England for dumb Christmas, so I'll be alone for a couple of weeks and want to really put the old nose to the grindstone and try to make some progress. Frankly, I just want to be able to update my own web page...that's the first goal.
Okay, well, looking forward to obsessively checking this topic twenty times today...and thanking you in advance for your guidance.
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Michel
Location: Montreal, Canada
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Thu Dec 15, 2005 2:39 pm Reply with quote
Queen La Tiff wrote: 2. I'm about to try to take the next step, and learn both flash and dreamweaver. I don't know anything at all about HTML. What order should I learn these programs in--flash first, or dreamweaver first? And would it help me to learn the basics of HTML before starting to learn either program? I've got version 8 of both programs, but it's clear that self-teaching isn't gonna work on these...I open the program and have no idea what to do next. I got the book Flash for Dummies, but it's making me feel even stupider, if that's even possible.
I've done pretty complicated Flash animations without any HTML knowledge. All I have done was from what I have learned in online tutorials. Some .fla files are availlable online and they can also be a great learning tool.
As for Dreamweaver, it is not required to know any HTML in order to use it. You can always access the HTML interface of the program, but if you work with the tools, you should be able to use Dreamweaver even with zero HTML knowledge.
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Photoshop Contest Forum Index - Featured Pic - File size... what a waste! - Reply to topic
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