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A bit of theory.
Due to certain properties of the human eye and the way the image is picked up by the brain, a printed image can be small and not very clear, but it is still properly perceived by the viewer.
In the case of engraved images, the requirements for the quality of photos are much greater.
Photographs too small and indistinct cannot be engraved legibly.
We can try, but the effect will be much worse than on paper photography.
We often get questions about engraving photos that someone only watches on the computer screen and it seems to them that they are very good.
Unfortunately, such photos look good only on the screen.
Even when trying to print, it would turn out that they do not look good, and when engraving it would be fatal.
What it comes from? Each photo consists of individual points.
On the screen, such points are called pixels, printed - dots.
For one inch (or about 2.5cm) screen of such points falls 72, for one-inch print 250 to 300, and for one inch of the engraver 500.
We call this is the resolution and we give in the unit designated "dpi" (dots per inch).
The more points for creating a photo, the better the image quality because it contains more information (shades, details).
So the higher the resolution, the better the image quality.
As you can see to make the picture look good on the screen, you need only 72 dots per inch.
But the same 72 points are only 14% of the 500 needed for engraving.
So the same photo to get well engraved could have a size of 3.6mm - just what can be seen on a three-millimetre image?
The practical conclusion is that the photo for engraving should be at least 6x bigger than the one that looks good on the screen.
In all graphics programs, you can check what is the size of the photo given in pixels and what is the resolution.
You can also change the size and resolution. There are many such programs, including free ones like gimp.
What should be the size of the photo sent for engraving?
To make the engraved photo clear, full of details and shades should be at least 8-10 cm in size.
There may be more if only the available space allows it.
In very special cases and only on hard grades of uncoated wood, smaller images can be engraved. But these are really special cases. In typical orders on varnished boxes or on plywood, it is better not to take photos smaller than 8-10 cm.
If the photo is to have a resolution of 500 dpi and a size of 10cm (or 4 inches), then the image should be 2000 pixels (width or height).
It may have slightly less, but for good results, it can not be less than 1,500 pixels.
It should be noted that this is only about the size of the part that will be engraved, not the size of the whole picture.
Even if the whole picture is large, but the characters are small, you only need to take into account the size of the character.
For example, if we have a picture of a couple on the beach and the majority of the picture is occupied by sand and sea, then we have to take into account only this small piece where people can be seen.
And only this piece must be clear and large and have at least 1,500 pixels.
How can you check the size of the photo?
Since most of the photos sent to engraving come from digital cameras and are saved in jpg format (which you can learn from the last letters of the file name, eg DSC000111.jpg), you can view them in an Internet browser such as InternetExplorer or Firefox.
Just click the file / open the file / ... If the photo is already visible, click on it with the right button, select "properties" and depending on the browser you can see similar information about the picture as shown below.
With this information, you can read the size of the photo in pixels (px)
And what if we do not have such a large picture?
In graphics programs, you can scale up the photo.
But keep in mind that the magnification does not increase the information contained in the picture.
How to prepare a photo for engraving?
If you already have a picture of the right size (that is, a minimum of 1700-2000 pixels wide), you can prepare them so that the final effect is the best.
We take a colour photo that anyone can want to engrave.
The picture has the right size, clear details, clearly outlined face shapes, hair with distinctive highlights.
The background is calm and does not bother, but in typical photos, the background often blends with the main subject of the photo and requires removal.
In the graphics program for photo processing, we trace the path with what we want to mark.
Drawing a path and creating a mask from it is the best method of selection, but you can do it in other ways.
In each program, it looks different so there is no place here for the detailed explanation.
It is important to mark what we want to have engraved.
After making the selection, choose the mask padding (in some programs- the selection is completed) in this way we have the background selected.
We can delete them or cut them out. Before we do this, let's look for a function that lets you "feather".
Thanks to this, we get a gentle transition from white to form. This is especially important when marking hair.
They look more natural.
If you made a photo using a modern digital camera, the required dimensions and resolution should be fine.
The picture preparation for engraving is included in the price.
If your picture need some processing like background removing, upscaling etc... and you want to be done by us there will be the additional fee.
The order will be completed over weekends only.
The base price is without a frame.
S 10cm x15cm
M 15cm x 21cm
L 21cm x 30cm
XL 30cm x 42cm
XXL 42cm x 60cm
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