One of the most common problems when dealing with scanned photographs as part of a digital restoration activity is that after scanning, the digital image appears to have a textured pattern to it.
This is often caused by the fact that the photograph in question has been printed on textured photographic paper.
This article will show you how to remove the un-desirable pattern effect without significantly loosing any of the important image detail.
The problematic photo may well be an old black and white, sepia, or even a more modern colour photograph.
(I remember Kodak introducing their "Silk finish" prints many years ago printed on a silky sheen textured paper!).
The example image on our web-site is an old black and white wedding photograph that has been printed on a textured paper.
If you look closely at the white cornice behind the bride and groom you can clearly see that the textured pattern of the photographic paper has been faithfully re-produced during the scanning of the photo.
Before we commence any major restoration work we would like to remove as much of the un-desirable textured pattern as is possible.
Step 1
Open the image up in Adobe Photoshop and the first step is to create a duplicate (copy) layer of the original image by selecting Layer-> Duplicate Layer .. and give the new layer an appropriate name.
Zoom in close enough to get an appreciation of how severe the textured pattern is, but keep some picture detail visible (especially people's faces) so that you can easily judge how well the texture removal is proceeding without loosing too much important picture detail.
Step 2
With the duplicate layer active apply a Gaussian Blur by selecting Filter->Blur->Gaussian Blur ...
A pop-up option box will allow you to set the amount of Gaussian blur to apply to the image.
I generally start with a Radius = 1.5 and work up from there, constantly looking at the image to see the affect as I increase the blur radius.
Anything over a Radius = 5.0 will usually be far too harsh, so in the example on the web-site the required outcome is to "minimise" the texture pattern effect without compromising the important detail in the photo.
For our web-site example image I found I was able to set Radius = 3.5 without any significant loss of detail.
The example image is starting to "soften", but the textured pattern has clearly diminished.
Step 3
Zooming out to have a look at the complete photo reveals that the un-desirable textured pattern has all but vanished with only minor softening of the important image detail.
Each photo you work on will have to be judged on its own merits when determining the amount of blur to apply.
But all is not lost on retaining that important image detail!!
Step 4
Remember ... the Gaussian blur has been applied to the duplicate layer we created at the start of the exercise.
The original image, complete with texture, is sitting under the duplicate layer.
By using Photoshop's Layer Blending Modes and Layer Opacity we can produce an image made up of a combination of both layers with some of the detail from the lower original layer showing through.
Again, each photo will be judged on its own merits and the setting I finalised on for our example image on the web-site may not be the same as you will find most suitable for your own images.
Try experimenting with the different blending modes and layer opacity settings.
I finally settled on a blending mode of "Luminosity" and Opacity of 85% for the Gaussian Blur layer.
Step 5
To finalise the image I then "flattened" the two layers into a single image layer by selecting Layer->Flatten Image.
Step 6
I then checked the tonal range of our combined layered image using the Levels command by selecting Image->Adjustment->Levels ... and fine tuned the black, white and grey points.
Step 7
And last but not least, we can still bring a little bit more "sharpness" out of the image by finally applying a small amount of Unsharp Mask by selecting Filter->Sharpen->Unsharp Mask ...
Experimenting with the various settings, I was able to settle upon Amount = 185%; Radius = 2.5 pixels; and Threshold = 50 levels.
And there you have it ... the removal of an un-desirable textured pattern without significantly sacrificing important image detail.
If you find the steps being taken are a little hard to understand in this text based article, you can click on the link at the end of this article to see the same method explained on our website with the aid of example graphical images.
? Gary Wilkinson 2005 - All Rights Reserved
You can see this method complete with example images at removing a textured pattern from a scanned photo
Feel free to re-print this article provided that all hyperlinks and author biography are retained as-is.
Gary Wilkinson is a photographer, photographic restorer and the owner of a photographic retail business. He is also the publisher of the removing a textured pattern from a scanned photo website, where other methods of correcting common photographic restoration problems are discussed.
apartment cleaning near Highland Park ..About Personalized Photo Calendars:Photo Calendars are 12-month, wall-hanging calendars that... Read More
PrefaceIn order to understand color management, it is important to... Read More
Getting the most out of your digital video camera can... Read More
There are two sources for obtaining the moulding for making... Read More
The photos you took of the party are really great... Read More
Are you buying your first digital camera? Well, you must... Read More
Several years ago, I met a fellow photographer - albeit,... Read More
The digital camera is not meant only for capturing images... Read More
Youv'e taken that perfect photo in the perfect light at... Read More
There are many kinds of disposable cameras. All disposable cameras... Read More
When you're driving through the mountains somewhere, and you... Read More
There are two types of underwater camera systems: an ""amphibious""... Read More
Digital Camera Basics? The VocabularyShopping for a digital camera can... Read More
Saturate yourself with your subject and the camera will all... Read More
While analyzing any camera, one of the most important qualities... Read More
That's right, you go through all the trouble of making... Read More
Night photos can take on a somewhat magical quality you... Read More
Being such a fascinating device as the digital camera, this... Read More
Reality TV is experiencing an upsurge in popularity and its... Read More
Disposable Cameras (also called single-use cameras) first came on the... Read More
Panasonic is a world-renowned consumer electronics company today. Its digital... Read More
Knowing which megapixel camera to buy can be intimidating. There... Read More
The digital camera is essentially a computer-based device, whose core... Read More
Choosing the right digital camera for general use can be... Read More
Photos are a great way to share your travel experiences... Read More
cleaning lady near Arlington Heights ..So you are a small business person or web designer... Read More
George Eastman, founder of Kodak is world renowned today. Digital... Read More
In a device such as a digital camera it is... Read More
While it would be nice to live in a house... Read More
Shopping for a new digital camera can be quite frustrating... Read More
There are way too many tape, disk and stick formats... Read More
Having an efficient work flow is essential for photographers. In... Read More
ContentEven if you feel that you already know what kind... Read More
Taking pictures of your new baby is a great way... Read More
Youv'e taken that perfect photo in the perfect light at... Read More
If you are buying a new underwater camera or video... Read More
Every Mom wants to take great photos of their babies... Read More
One of the biggest debates in the photography world is... Read More
Babies make the best and the worst subjects to photograph.... Read More
STAY CONNECTED WITH FAMILY AND FRIENDS.Making your own digital photo... Read More
Choosing the right digital camera for general use can be... Read More
Think about Laurel and Hardy for a moment, or Charlie... Read More
If you have hopes of becoming a professional photographer, or... Read More
At a Photo Club meeting I attended recently, the President... Read More
A common problem with old photos is that they often... Read More
Probably one of the most common problems you will be... Read More
Underwater photography's is primarily focused towards entertaining and informing the... Read More
Being such a fascinating device as the digital camera, this... Read More
As it is a fact that digital cameras are comprised... Read More
So you have rushed out into the malls in a... Read More
Photography |