Wednesday, July 9, 2014

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Hi, been working on my first novel and have it ready to send to CS.  Now the cover...my problem seems to be I just don't understand....the question right now is how to get my Vista computer to change my own photos from 72 dpi to 300 dpi.  There isn't any how to help out there in siber space that I have found....so how the heck it is done?   My cover notification states that I have low resolution annie leibovitz and it ain't too happy....how do I fix it.  and thank you  in advance. M
It's a hidden field inside your image files that instructs the printer how many pixels (that's the 'D' (dots) in DPI) to print in an inch (the 'I', hence, Dots Per Inch). That's all it is. If that hidden field says 72, then the printer will take your image and print it out at a size that equates to one inch per 72 pixels. Likewise, if that field says 300, then the printer will print 300 of those pixels in one inch.
Let's say that you have an image that is 600 pixels wide and 900 pixels high. If the hidden DPI field contains the value 300, then the printer will print that image 2 inches wide (i.e. 600/300) annie leibovitz and 3 inches high (900/300). That is, it will print one inch for each 300 pixels.
So, the first thing you need to do is determine the size you want the images printed at. Maybe 4 inches wide? 5 inches high? Multiply those numbers by 300. That tells you exactly the pixel resolution, or dimensions, that the image must be. For 4" x 5", for example, you need 1200x1500 pixels.
If you images annie leibovitz are smaller than that (in pixels), then you need to resize them. Use a program like Photoshop or GIMP to resize (scale) the images. Set the DPI field to 300. Depending on the program you use, there are different ways of doing it.
If you just resize the pictures, it can look atrocious. Ideally, you should find a higher quality image. Imagine that you have a picture 2"x3". You decide to blow it up to 20"x30". If the resolution is 72 dpi, the image will be pixelated. If all you do is tell the machine to change the dpi, you're not going to solve the problem. You're only going to waste memory on a blurry picture.
I have enlarged some images as much as 3000% (from film and from digital files ), and they've been great. For example about of a 35mm frame to 20" wide, or a 2 X 2 @72 dpi image to 15 x 15 at 300 dpi. Whether this is possible or not depends on the original image (how much and the quality of the useable information available), what is required at the output end, what software or hardware (in the case of film) is available, and the skill of the person doing the adjustments.
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