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Scanning a booklet without an ugly crease
When you try to scan a thick booklet or a book you can often get the above ugly crease around the staples when you try to lay the booklet flat. Less than desirable, the question is how to remove the crease mark. While you can remove the crease after scanning this may not work so… read more…
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Cleaning the Epson 3170 scanner’s glass
You will notice as time goes by that the inside of the scanner glass gets dirty. The good news is that for this scanner at least, cleaning the glass is really easy. Firstly remove the scanner lid by unplugging the power cable for the light and then sliding the scanner lid off. Inside each of… read more…
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Archiving CD artwork
The goal when I archive CDs is to get the best possible digital quality from my CDs and be protected against the loss of my collection. I don’t have as big a collection as many but I like most of the CDs I have got and I don’t want to have to hunt for them… read more…
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Removing interference patterns when scanning a CD
Looking at a CD which only has only writing or an image but no background color you will be able to straight through to the reflective back of the CD. Thus if you hold the CD at just the right angle to the light you will see a rainbow pattern. The problem is if you… read more…
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Color balance in Gimp using an eye dropper
Frequently you want to set the color balance for an image in Gimp but don’t want to do it manually. Fortunately it’s easy with Gimp using the eye dropper. Just select “Color | Levels” from the Gimp menu and you can see a dropper for selecting either a black, gray or while color point in… read more…
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Fixing moiré patterns – text mixed with images
You will may have read the post removing moiré patterns using GIMP which describes how to remove moiré patterns from images using GIMP. This works well but you major headaches when you have an image that has a mixture of text and images. The problem is that if you apply a fourier transformation to text… read more…
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Scanning tips – stop the reverse side shinning through
When scanning booklets, in particular, you can occasionally get images from the back of the thing you are scanning as above. Sometimes this is barely visible sometimes it is incredibly obvious and really annoying. The simple answer is to place a black sheet of paper or cardboard directly behind the page you are scanning: You… read more…
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Removing moiré patterns using GIMP
A moiré pattern typically occurs when you scan a printed picture and then view or print out that scan. The above picture is a classic example. This discusses how to use GIMP to remove, or mostly remove from your scan, the typical underlying cause of moiré patterns. The process we are going to use is… read more…
GIMP
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