Enlargement
13 creative works found
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Tutorial: What Size Images Can I Print?
by GraceyThis is a question I see on a regular basis in the forums; sometimes in the journal entries as well. I know that RB has posted this in…
This is a question I see on a regular basis in the forums; sometimes in the journal entries as well. I know that RB has posted this information in the forums, though for most new people it’s difficult to find. When you run a search from “my bubble” it doesn’t pick up forum threads, and if you aren’t a forum watcher (or don’t know the forums are there) you don’t even know you can search there. For anybody looking for the base information for required image sizes, the forum thread to see is in The Learning Centre Forum – FAQ listing posted by Peter What the post doesn’t tell you is that the various print sizes differ from image to image, based on the uploaded size of your image. Below are the minimum redbubble required pixels for printing, as well as 3 images of my own showing the uploaded pixel size, and the resulting printout size at redbubble. I hope this will help give an idea of what you’ll get from the image size you have. NB: if you have images that aren’t large enough for what you want, please see the end of the post for help redBubble Minimum Sizes for Prints Cards: 1300 pixels X 900 pixels Small prints: 1600 pixels X 2400 pixels / Med. Prints: 2160 X 3240 pixels / Large prints: 2560 pixels X 3840 pixels Posters small: 2500 pixels X 3500 pixels / Posters medium: 3500 pixels X 5000 pixels / Posters large: 5000 pixels X 7100 pixels Clothing: 2400 pixels X 3200 pixels Here are 3 of my uploads with the uploaded pixel dimensions, and what I can print from them: Strokes of the Lily (uploaded size 4200 X 5067) Cards / Matted Prints 9.6 X 11.5 / All Other Prints: Small 8 X 9.65, Medium 12 X 14.48, Large 16 X 19.3 / Posters: Small 16.5 X 19.9, Medium 23.4 X 28.2 (large is not available) Softest Dreams (uploaded size 7200 X 5023) Cards / Matted Prints 12.6 X 8.8 / All Other Prints Small 11.4 X 8, Medium 17.2 X 12, Large 22.9 X 16 / Posters Small 23.3 X 16.2, Medium 33 X 23, Large 46.8 X 32.6 On The Wind (uploaded size 3900 X 2571) Cards / Matted Prints 12 X 8 / All Other Prints Small 12 X 7.9, Medium 18 X 11.8, Large 24 X 15.8 / Poster Small 23.3 X 15.3 (other sizes not available because the uploaded file is not large enough) What You can Do if Your Images are Too Small Please have a look at the links below – these are various methods and instructions for increasing your image size so you can print the larger image sizes on redbubble. WARNING: image quality must be excellent in order to increase from small to large, so be sure your original sized image is of good quality. Increasing your images too much will cause artifacting that will show up in your large print. Basic Resizing Tutorial / How I Enlarge Images and Preserve Their Quality by Steven Love I know there are other image size tutorials, but I wasn’t able to find them doing a search. Please, if you have (or know of) other tutorials that are relative to this journal, post a link to them in the comments.
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How I enlarge Images and preserve their quality
by Steven LoveA short time ago Bianca Thomas wrote a journal entry on “Stretching Pixels” and how enlarging an image can degrade it if you stretch the …
A short time ago Bianca Thomas wrote a journal entry on “Stretching Pixels” and how enlarging an image can degrade it if you stretch the pixels too much. / . / In essence she is correct. When you increase the image’s physical print size while leaving the pixel dimensions the same the DPI will have to drop in order to stretch the image to the needed size. These stretching of the existing pixels creates gaps which can show up as distortions called “Artifacts”. / . / There is another method of enlarging an image while reducing the number of artifacts created. It is called “Interpolation”, also known as “Re-sampling”. / . / In Photoshop CS2 and CS3 you can Interpolate the image by using what is called the “Bicubic Method”. This method allows you to enlarge an image but retains the original DPI. / . / The Bicubic Method enlarges an image by using a very complex mathematical calculation similar to Fractal Geometry. The program basically looks at the image and then through Fractal geometry calculations “Predicts” where to add additional pixels so that you can increase the pixel dimensions while retaining the same DPI setting. / . / Photoshop has three Bicubic Methods; / If you are only enlarging the image a small amount, say 10% to 20% above its original size then the default Bicubic setting is good enough. / However, if you plan to increase size more than 20% then you’ll want to select “Bicubic Smoother”, which will help reduce distortions. / . / The third method called “Bicubic Sharper” is what you would use if you were reducing the size of an image. But since most people want to make their images larger the first two settings should be used. / . / There is a limit, however, on how large you can interpolate without distorting the image. For example; if you take a 4 megapixel image, which will measure 2272 by 1704 pixles, and boost it to an 8 megapixel image, which will measure 3264 by 2448 pixels, you will get some distortions. / . / There is a way to prevent these distortions and still be able to double the size of the image. First, do not try to enlarge the image to a huge size in one single step. The best way to enlarge an image and preserve most of its quality is to do it in two or more stages. / . / The following example will be an 8 mega pixel at 3264 by 2448 pixels at 300 dpi. This original size will print to 8.16 by 10.88 inches in Landscape orientation. But the procedure can also be applied to Portrait orientation as well. / . / First I open this image in Photoshop. On a side note, you should be doing this with either a RAW, PNG or TIFF format. JPEGs don’t interpolate well because of it being a lossy format to begin with. / . / Next, run the image through a noise reduction filter to reduce or get rid of any digital noise created by the camera. Then do what ever color, contrast, sharpness and exposure adjustments that are needed. / . / Now, go to the Image Tab and click on Image Size. You should see a display showing the current image size and resolution. Before you change the size make sure that the boxes labeled “Constrain Proportions” and “Re-Sample” are checked. / . / Next, we move on to change the document size. The document size is the size the image will physically print at. Do not alter the Pixel dimensions at this time. / . / As I mentioned earlier it is best to do this in incremental stages rather than one large step. For this example the current document size is 8.16 for height by 10.88 for width. You will now change the height to 12.8. By checking the box “Constrain Proportions” you should see the width size change automatically to 17.067 which is the correct width proportion for the changed height size. You will also see that the Pixel Dimensions also changed accordingly. That is why I told you not to tamper with the pixels. The program will do that for you. / . / Also notice that the resolution of 300 DPI did not change. / . / Before you click “OK” to complete the interpolation change the Method from the default Bicubic to Bicubic Smoother. After clicking “OK” you will notice that the size change will take some time because the mathematical calculations the program has to do are extensive. / . / Once this enlargement is complete you may notice some tiny distortions in area of solid color such as in the sky or in other mono-colored areas. The distortions may look like little grains. Once again use a noise reduction filter to remove or at least reduce the distortions. / . / Once you have reduced the noise again go back to the image size control and using the same procedure as before increase the height from 12.8 to 18.0. The width should automatically change to 24 inches. / . / Now look over the image again for noise and apply the noise reduction filters to remove or reduce the noise. / . / When you have finished save the image as a 16 bit PNG. This will preserve all color depth and clarity. But be warned that the file size will be huge and the saving process will take some time depending up your computer’s RAM capacity. / . / Use this version as your master image copy. If you need to make a copy to upload to the internet simply switch it back to 8 bit and save a JPEG copy of it. / . / On a final note, even though this will enable you to make some large high quality prints there will always be some images that will have a small amount of noise or distortions. The key is to make note of whether the noise is reduceable or not. If the noise gets worse as you enlarge then you know that the prior size was the maximum you can go with the image you have. / . / I’ve been able to successfully enlarge 8 megapixel 8 X 10 images so that they’ll print as big as 18 X 24 posters with little to no distortions. But for those of you with smaller cameras, such as 4 to 6 mega pixels, you may not be able to interpolate as large as I do without some distortions. / . / That’s how I enlarge my photos using Photoshop. / . / If any of you have any additional info on the subject feel free to post in the comments.
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Basic Resizing Tutorial
by GraceyThis is a very basic resizing tutorial for those wanting to enlarge work for print. Enlarging should be done PRIOR TO any other processin…
This is a very basic resizing tutorial for those wanting to enlarge work for print. Enlarging should be done PRIOR TO any other processing of your image. This contains no gaussian blur layers, no processing tips – just how to resize your images, with very simple and non-technical information. It does explain (in the simplest terms) the differences between file sizes and image size, and how to change the resolution. Those already using a method to enlarge their photos won’t get much out of this, but those just learning might find it helpful The tutorial is in a downloadable .pdf format and includes screenshots with the instructions, to make it even easier to follow. Basic Image Enlargement in Photoshop Thanks goes to Shaida Parveen for the image used during the making of the tutorial.
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Enlarge your images for Free
by Randy MonteithHi everyone Instead of buying any program to enlarge your images Try these techniques for free. Method 1...
Hi everyone Instead of buying any program to enlarge your images Try these techniques for free. Method 1 Method 2 Using an Action You Create in PhotoShop Video Try these two methods and see if they suit your needs Randy Monteith
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’’What has the artist to achieve if he/she allows not his/her greatest and most passionate imprint upon the canvas of life – another’s mind, heart and soul?’‘ / Thomas Josiah Chappelle / Beautifully composed and well written. I think this is your best yet. – Lori AS CURLY OF THE THREE STOOGES WOULD SO ‘ASTUTELY’ OBSERVE AND STATE, “soitenly!” (-;~ and much thanks for the compliments, my dear friends
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enlarged image of the art ‘A Tender Heart’
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giraffes eat leaves at the top of trees because they have long necks
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Another random attempt at humor…
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The 12 th Century Romanesque ST Michel Church has an / interesting bell-wall with three bells. / This french church was enlarged in 1516 and is well restored. / Sigale village is very proud of its historic buildings.
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wanting to enlarge and increase resolution in images
by bev langbyHi im Bev and just joined thanks for the tutorials ive found so far .. / i only use Photoshop to prepare and finish my work , i do my pain…
Hi im Bev and just joined thanks for the tutorials ive found so far .. / i only use Photoshop to prepare and finish my work , i do my painting in Corel Painter….....anyway on to my problem im unable to buy a program to do this at the moment so have been searching for a free plugin, i only have Photoshop 7 anyway i found this and would like to share it and have someone who knows about these things or has a program or plugin to compare it to….... TIA if you can help / cheers Bev
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enlarged image of the art ‘Future’
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enlarged image of the art ‘The World’
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enlarged image of the art ‘Being with you’
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