How many pixels are in a 4x6 photo? Is 4x6 a standard photo size?
That would depend on what dpi the picture was taken in.The setting is “dpi” which stands for: dots per inch.A dot is essentially a single point of information in a picture.4 x 6 inches in 100 dpi is 400x600 or 2400 dots. When displayed on a computer screen at it’s default resolution the computer will translate that as 2400 pixels. As soon as you zoom in or zoom out, the computer translates those “dots” into more or less pixels and interprets a new image for you.Because dots can be manipulated in size they only translate to that exact number of pixels when displayed at their native resolution.The reverse is also true. You can manipulate images using a variety of resolutions (which changes the number of pixels being shown) but what ends up being printed or output will depend on how many dots per inch you tell it to create as output.Printed pictures don’t have pixels. They have dots of ink, and the number of dots of ink used is based on the dpi settings.How clear those dots will be will depend on the source file it’s being printed from. For a clear printed image your source image needs to be at or above the dpi in pixel density.That’s the basics. The number of pixels in a 4x6 image depends entirely on what medium you are talking about and the settings used to achieve that output.
Is resolution the same as megapixels?
Resolution is related to megapixels, but they are not necissarily the same. Generally when talking about resolution, I don't think in terms of LxW, I think in terms of WxH (Width and Height) your 640x480 image is (generally) 640 Wide and 480 High. About the picture printers from cvs/walmart, I don't know. Some applications will rotate and print correctly, others will keep the orientation and print it incorrectly. I would take it to cvs and ask them to do a free test (with your picture) to make sure it works correctly for you before you buy. Generally I try to stick to at least 300dpi for a quality print. So for a 4x6 inch picture I would prefer a 1200x1800 picture. Your preference may lead you to a different conclustion, but that is what I prefer. To figure out megapixels from resolution do the following: LxW. From the example above, 1200 * 1800 = 2 160 000. Or 2.16 Megapixels(millions of pixels) To figure out resolution from megapixels is possible, but you also need something else. Aspect ratio. a square image has a 1 to 1 aspect ratio. For every 1 L pixel, there is 1 W pixel. Normal resolutions include 4:3 (640x480) 5:4 (1280x1024) and 16:9 (1920x1080). 1920x1080 is the current resolution for HD movies on blueray, FYI Using this information, we can come up with the following. Take your 4x6 picture: This has an aspect ratio of 2:3. Assuming you have a 3 Megapixel (3 024 600 pixels) image with a 2:3 aspect ratio you would do the following to get the resolution: Take your numbers from your aspect ratio and multiply them together (3 * 2 = 6) Take the pixels and divide (3024600 / 6 = 504100) Take that answer, and get a square root ( 504100^.5 = 710) Take 710 and multiply by your aspect values again. Your aspect ratio was 2:3, so 2 * 710 and 3 * 710 2*710 = 2130 3*710 = 1420 Your 3 megapixel resolution image on a 4x6 image would have a resolution of 1420 x 2130 (remember in portrait, the longer side is the Height) I've put a chart I made online for you here: http://www.filefactory.com/file/ag4ea85/n/resolution_xls Also take a look here, as it may be useful to you in the future: http://web.forret.com/tools/megapixel_chart.asp
How many pixels in a 4x6 photo?
The short answer is: At 300dpi Wallet 750x900 pixels .7 megapixels 4x6 1200x1800 pixels 2 megapixels 5x7 1500x2100 pixels 3.1 megapixels 8x10 2400x3000 pixels 7.2 megapixels The useful answer is that your 10MP camera will allow you to print over a 20x30 inch print easily. When a photo pulls up on your screen as huge but 72dpi/ppi that is not the actual quality of the print. That is a display quality because many computer monitors only really "see" in that resolution anyway. Just change the resolution of your photo to 300 and deselect "resample" to see the basic print size of your photos. When cropping and saving a photo for printing be sure to "save as" so you don't overwrite the original. How big can I print my photos? http://photography.about.com/od/developi... http://photography.about.com/od/developi... What are megapixels?
Does anyone know how to change the color depth of a image ???
Jpeg's and probably most tiff images are 8-bit. With CS2, Image > Mode and you can select 16-bit but you probably will not see any difference. You can change the ppi (dpi) by menu Image > Resize > Resize Image. Uncheck the "resample" box. Now you can change the "resolution" to 300 ppi. Depending on the image size you may be able to print it or it might look terrible. If you want or need to, go back to the Image Resize, check the resample, and in the top part of the dialog window, change pixels to percent. Make sure the constrain proportions is checked. and enter 110 for the percent. Keep upsizing in this fashion until you get to the size you need. Remember, the size you need in pixels is 240-300 times the size in inches that you want to print. 4 x 6 therefor 1200 x 1800 at 300 ppi.
4X6 flyer = what width and height for a flyer I'm making?
If you are sending to a professional print shop then the below specs are what you should follow: SIZE : 4.125 X 6.125 *this size includes what is called a printers bleed. All shops require this. Just remember that they will be trimming off the extra 0.125 to make your postcard 4 X 6. So please fill your whole image,background or color, Do not leave any frame or border around your design as this will cause an poor look when printed in real life. Keep anything you would not want trimmed at least 0.250 away from the edges. (example..like text) RESOLUTION or DPI: Must be 300 ...this is not an option. It has to be 300 to get a good quality print. Anything lower and your printer will not gauntness the quality. You can never print from 72 DPI COLOR MODE: if you have the option set your color to CMYK rather than RGB. This will produce the best results. RGB is only for onscreen work like websites. Designs that are not going tp be printed. STYLE NOTES:(1) try not to combine dark color on top of dark colors. Example Forest Green text on top of black background. Red text on top of black background. these colors will look good on the screen...but rarely look as good when printed. (2) try to never use a font size smaller than a #8 .....when a smaller font is printed there may be problems with being able to read it. (3) if you know how , always use these mixes for your design C=0 M=0 Y=0 K=100 for black text and C=75 M=65 Y=65 K=100 for black backgrounds,shapes and very very large text The above standards are from Red Line Design and Printing of Las Vegas. They are always the to help. Their main designer always has the answers. They will answer questions by email or phone for free. So if you ever need help setting up a rush business card, flyer or postcard. I would send them a email. Trifold brochures are even harder to set-up. Plus they have free shipping.