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Or scan small film at 2700 dpi, print at 300 dpi, for 2700/300 = 9X size. If from full frame 35 mm film (roughly 0.92 x 1.41 inches), then 9X is about 8x12 inches (near A4 size). Film is typically small, requiring more scan resolution for more pixels for more print enlargement. The reason to scan at high resolution is for "enlargement", specifically to create enough pixels to print a larger print at about 300 pixels per inch. Scanning larger than any reasonable future use is likely pointless. Next, divide the number of pixels in the height of the file by 200. (1600/200=8). So, there you have it. A file size of 2,000 pixels X 1600 pixels can be printed to make a good quality 10 X 8 photo when printed at 200 DPI. Given that I have many clients, on various courses, and other events wishing to create prints, I felt a guide to the considerations and technicalities would be helpful. Having spent countless hours capturing images, editing images and probably re-editing and selecting images your now at the stage of getting a set of prints ready.

These are significant and important differences of shape. Size is easy, we can always adjust size, but when the shapes don't match, you must decide if to match the short dimensions or the long dimensions. One way, you crop off some of the long ends. The other way, you crop off some of the short sides. This depends on the numerical aspect ratio, and if the wrong way, there will blank paper space remaining, which can be trimmed away and would be the best choice for a wide panoramic width, or if cropping would harm the height content. The calculator will chose the Match method that simply prevents any blank paper, like the one-hour print labs normally do. The image content in the picture is also a very strong concern, to prevent cutting off heads or leaving someone out, or simply destroying the picture quality.

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Arrange the 4-digit multiplicand and 3-digit multiplier for long multiplication method, multiply the multiplicand by Least Significant Digit (LSD) of multiplier and the product underneath to the line in the way that the Ones’s place value of multiplicand and One’s place value of product of LSD of multiplier and whole multiplicand should be vertically aligned in a straight line. If the image was previously cropped to be the same aspect ratio as the selected paper shape, then great, that's the idea. If not, the calculator will advise what the optimum cropped size should have been. Most one hour print shops won't leave any white space, and this calculator does the same. However, before you print it, it would always be a really good thing if you had first prepared the image to fit the paper properly, both shape and size. Scanner mechanisms use a sensor with a single row of maximum resolution pixels across the width of the bed (lesser resolutions are resamapled, for which even powers of two are much less complex and considered preferable), and a carriage stepping motor to move that one pixel row down the height of the image. A common procedure that the meticulous users use is instead of entering some precise but non-standard scanning resolution (like maybe 1548 dpi), is to instead intentionally scan a little larger using a next larger standard scanner resolution menu choice, from the scanner menu (offering the powers of two). Perhaps that next one is 2400 dpi, but the next standard step at 100% scale is sufficient. Unnecessarily even larger is not a plus (at least not for this one specific goal). Extra pixels also allow a bit tighter artistic crop, which is often a good thing anyway. And resampling in the photo editor has ALL pixels available, instead of a single row. And it is normally necessary to first crop to match paper shape. The procedure for printing is: First crop to paper shape, and then resample smaller to proper size for printing at about 300 dpi. Preparingtheimageshape to fit the paper shape is necessary, because paper and image are often different shapes.

So, what about aspect ratios? In its simplest form, a print aspect ratio is simply a measurement of its width compared to its height, in the form of a ratio. For example, a full frame image taken from a SLR camera, without any cropping, is in the ratio 3:2. Or expressed another way, the width of the image is 1.5 times the height of the image. When a scanner scans at 300 dpi, it creates 300 pixels per inch of dimension scanned. Scanning 8x10 inches at 300 dpi creates a 2400x3000 pixel image. How does aspect ratios relate to cropping? The image below is a full frame 3:2 image. If we printed this as a 6×4” print, it would not need cropping but what if we wanted this image in another common print format – a 10×8”? Both Size and Shape are important, and while you're dealing with "crop to shape", why not also resample it to a much more reasonable size first? (see next Blue step). As a unit of area, it has a magnitude equivalent to the area of a square with sides of 1 foot. This size makes it helpful to talk about the area of everyday objects such as a house (typically 500-1000 sq ft), a room (~100 sq ft) and even an A4 piece of paper (0.65 sq ft) without having to use either very big or very small numbers. There exist, obviously, other units of area that can express the same magnitude as the sq ft and might even be more suitable for very small objects (like the square inch), very big objects (like the acre), or to simply to communicate with the rest of the world by using the standardized SI/Metric units (whose default unit of area is the square meter).Scanning: It calculates the scanned output image size created if the area is scanned at the dpi resolution. To use the calculator is as simple as setting the known values and letting the system calculate the rest. This means that you can use this calculator to compute the price per square foot of a property if you know the total price and total square footage. You may think that the job is done already but the print is the final part of the workflow (share) and is as every bit important as the previous four stages: But technically, if reducing to a smaller aspect number (like 1.5 to 1.4 in this example), you normally would choose to match the short dimension (else the short dimension will not be filled). Proper fraction button and Improper fraction button work as pair. When you choose the one the other is switched off.

And then if scanning 5x7 to print a 4x6 copy, that is a size reduction, but an enlarged aspect from 1.4 to 1.5, so it should match the long dimensions. That enlargement is the ratio of the long dimensions, 5/7 = 0.714x or to 71% size. Scan at 300 dpi x 0.714 = 214 dpi to have the right count of pixels to print smaller. If your image dimensions are too large, the photo shop will first resample it to this smaller requested size. That's not necessarily a problem, except a far too-large image will be slow to upload. Or, if too small (insufficient pixels provided), the print quality will be lower, and the lab may refuse worst cases. But if the provided image shape does not match the paper shape, the excess image outside the paper edges simply disappears, results may not be what you expected. In Blue text at bottom: The best plan is to FIRST crop the image to the shape to match paper shape (same aspect ratio). In good crop tools, there will be an option to specify your desired aspect ratio, and then any crop box you can mark will be the proper shape. Simply choose the best crop size and position of that crop box for best image presentation and appearance, to show what you want the image to show (think about it a second, and choose the crop to omit the distracting or empty uninteresting areas, and keep the best view). That box will be the correct paper aspect ratio. Then resample to the 300 dpi size, which is the proper way to do it, and the two pixel dimensions will come out correct. Or 250 dpi will normally print great too (many one hour photo shops do not print higher than 250 dpi). Some crop tools will offer a dpi resolution field to also resample in the same crop operation (do verify your result pixel dimension numbers). The calculator shows the final result crop dimensions that will fit the paper, AFTER it is cropped to shape, and then again AFTER it is resampled to 300 dpi. This proper match is the obvious best choice (No surprises if you choose the cropping you prefer). You have uploaded full-resolution JPGs or Tiff Files to the print lab with a standard colour profile – Adobe RGB or SRGB TIP: If you both scan and then print at the same dpi, it will print a copy at the same original size. To do that, scan and print just have to be the same dpi number, but 300 dpi will be a great number for a high quality print. Photos are preferably done on a photo quality printer and photo paper.FWIW,I'moldschool, and I learned the term for printing resolution as "dpi", so that's second nature to me, dpi has simply always been the name of it. Some do call it ppi now, same thing, pixels per inch, which is what it is. Ink jet printers do have their own other thing about ink drops per inch (but which is about the quality of dithering colors (to color each pixel), not about image resolution). But here, we're speaking about printing resolution of image pixels, which ink jets also have to do. When a printer prints at 300 dpi, it spaces the pixels onto paper at 300 pixels per inch of paper. Printing 3000 pixels at 300 dpi prints a 10 inch image on paper.

This might sound like a simple mathematical formula, but it is precisely how to measure the square footage of a rectangular room in real life. We just need to measure two consecutive sides in feet and multiply the values together. Aspect Ratio is the "shape" of the image — the simple ratio of the images long side to its short side, which is a shape, maybe long and thin, or short and wide. And every paper size seems to be a different shape too. Shape and size are two different properties. To print an image, we can always enlarge the Size, but the image shape needs to match the paper shape (which is done by cropping). If this Aspect Ratio subject is new, see Image Resize - Aspect. The keyconnectionto viewing distance here is that due to the optics of the human eye, a print that is 3x farther away requires exactly 3xless resolution tomaintainthe same visible quality! The straight-forward way to scale for printing is to simply compute "pixels per inch" for the inches scanned, and then recompute those pixels over the inches printed (called scaling, as mentioned in the scanning Results). The scanner will have its Input and Output dimensions to show this. Also we have photo editor tools to make this resize be easy. See Image Resize. My digital photography interpretation of Ansel's quote is “the digital file is the score, and the print is the performance.”When multiplying decimals, say, 0.2 0.2 0.2 and 1.25 1.25 1.25, we can begin by forgetting the dots. That means that to find 0.2 × 1.25 0.2 \times 1.25 0.2 × 1.25, we start by finding 2 × 125 2 \times 125 2 × 125, which is 250 250 250. Then we count how many digits to the right of the dots we had in total in the numbers we started with (in this case, it's three: one in 0.2 0.2 0.2 and two in 1.25 1.25 1.25). We then write the dot that many digits from the right in what we obtained. For us, this translates to putting the dot to the left of 2 2 2, which gives 0.250 = 0.25 0.250 = 0.25 0.250 = 0.25 (we write 0 0 0 if we have no number in front of the dot). All images have been cropped to standard aspect ratios, OR you have calculated the dimensions for each image size and mount size with cut-out/window. Just to be sure you are aware, Scaling is an option in the scanners menu that is a multiplier for resolution that scales output size. If you set the scan to 4x6 inches at 300 dpi at 200% scale, it will scan the 4x6 inches at 600 dpi (will create 2400x3600 pixels), but will set the image files dpi resolution value to the specified 300 dpi so that it will print 2x size or 8x12 inches size on paper at 300 dpi. That's the meaning of Scale, and the scanners meaning of Input and Output (what we scan, and what we get). While most scanner menu boxes don't show the 600 dpi number, it shows the 200%, and should show all of these inch and pixel numbers (scaling discussed more). This scaling is mentioned in the calculator Button 2 and 3 results, but below, I am speaking of 100% scale, which is NOT multiplied (100% scale multiplies scan resolution by 1, which has no effect). Aspect ratio is simply the ratio of the two dimensions of the same image (divide longest / shortest, 6x4 dimensions or 6000x4000 pixels are both 6/4 = 1.5:1 aspect ratio), which describes its shape (longer, or wider). In the printing situation, the existing image is usually a different shape than the paper we want to print it on. The shapes necessarily need to be made to match.