How to Make an Image Seamless in Photoshop

Whether you are a Web designer or 3D texture artist, the ability to alter a texture and make it seamless is invaluable when creating backgrounds, texture maps and virtual fabrics. However, it is a daunting task that depends on picking the right image for it to be successful. This How to Make an Image Seamless in Photoshop article will give you tips to recognizing suitable pictures and how to convert them to seamless tiles.

This tutorial does require that you comprehend the clone and smudge tool in the image editor Adobe Photoshop. These are the instruments you will use to get rid of the seams. The time period it takes to convert a picture will depend on the complexity of it. This could be anywhere between 8 and 20 minutes.

The first step is to give your image a square dimension then offset the edges to begin the seamless process.

1. If you are using a photo, crop a section out of your image that is square by using the rectangular marquee tool by pushing M. Pick the Fixed Aspect Ratio option and enter 1 in each input box.
2. Crop your selection. Go to Image -> Crop.
3. Take a look in Image -> Image Size. Make a note of the width and height. Divide each by 2. Then, you will have your width and height offset values.
4. Open Filter -> Other -> Offset. Enter your offset numbers. Check the Wrap Around radio button.

Now, if you look at your image you will notice four obvious seams that need to be removed. How you remove them depends on what is happening at that spot. Use the clone tool when you need to move whole segments to cover a seam. However, the smudge tool is effective on flat color areas that just need to have the pixels pushed or pulled to hide a line.

In highly problematic areas, you may need to actually use the paintbrush to alter a section. You can also select and copy whole parts to replace particularly bad areas. For example. if you are working on a stone path, you can cut a whole stone out and place it over part of a seam.

Make sure not to get too close to the outer edges because that will ruin the effect of the offset.

Once you are done, test your tile by making it into a pattern and tiling it in a new document.

1. Go to Image -> Image Size and shrink the width and height of your document by 50%.
2. Select the whole image with Ctrl + A then go to Edit -> Define Pattern. Name it myPattern.
3. Save the file and close it.
4. Open a new 1000 x 1000 pixel document.
5. Fill it with your new tile. Go to Edit -> Fill and click pattern from the drop down. After that, just find myPattern in the browser.