Posts Tagged ‘Tool’

How To Change The Background Of A Photo

Introduction:

This tutorial is to help you learn how to change the background of a photo to something more interesting if you choose.  There are many ways of getting this done, but this technique is probably one of the easiest and most effective.  Ok, so once you open two similar photos (preferably the same size) that you would like to combine in photoshop:

1. Adjust the Levels and Brightness and Contrast of both pictures so they are just about as similarly adjusted as possible.  If you need more explanation of this visit our “Photo Touchups Tutorial.”

2. Then working with the photo that has the background that you want to use, Select the whole thing (Select>All), Copy the whole thing (Edit>Copy), and then working with the photo that has the foreground that you want to use, Paste the previous photo onto a new layer (Edit>Paste). Your layers menu for the for your photo should now look similar to the picture to the left.  With the background photo on top of the foreground photo.

3. Now, add a Layer Mask to the upper layer that Hides All, (Layer>Add Layer Mask>Hide All). Your Layers menu should now look like similar to the picture below.

4. Click on the Brush Tool.

5. (make sure the colors you are working with are black and white).

6. Then (with the mask on the upper layer selected) simply brush where you want the new background to show through.  You will probably have to change brush sizes often for the more intricate places.

 

By RIchard Schneider

Photographing In Dark Indoor Setting

1. Camera Stability.

You will be taking long exposures, and any camera motion could impact the quality of the image. Try to utilize a monopod or stabilize the camera on the back of a theater seat. Do not hold the camera in front of you without support.

Some cameras and lenses have stabilization features which help, but will not be able to compensate for large movements in the camera. If you have an SLR, you may want to tuck your elbow into your belly, relax, hold your breath and gently press the shutter button.

2. Equipment.

A digital SLR with a fast (2.8 or better) lens and the ability to capture images cleanly at high sensitivity is best. If you are using a point and shoot, you may have some challenges in getting clean images in a dark room.

3. Flash Off.

Most indoor settings that allow photography specifically state “no flash photography”. In many cases, you’ll just ruin the existing lighting, distract the other viewers and get yourself ejected from the event. Also, from seating distance and angle, many on-camera flashes will be largely ineffective.4. Exposure parameters. You will generally need to set your camera for high ISO or sensitivity (800 to 1600, some newer cameras will go to 3200 or more), low shutter speed (depends on your subject), and wide open F-stop (2.8 to 4.0). For those of you with point and shoot cameras, there may be a “night mode” or other preset which will attempt to deal with these conditions.

4. Shutter Speed.

Integral to the exposure parameters above, you’ll need to set a preferred shutter speed for the activity being photographed. Indoor sports events are often well lit, but you’ll still want to stop motion at 1/120 or faster speed. Indoor dance performances may be much darker, but also require at least 1/60 to 1/100 to stop motion.

Speeches and plays may have less motion, so you may be able to drop below 1/60. For images of still items such as museums, you can afford to drop to a low speed to get a better exposure at higher f-stop or lower sensitivity. Just remember that low shutter speed amplifies the need for camera stability.

6. Underexposing.

Sometimes, to get the right shutter speed, you may not have enough sensitivity and aperture to get a good exposure. Instead of lowering the shutter and getting a guaranteed blurry image, keep the shutter where you need and underexpose the image. In your image editor, you can push the exposure a couple of stops and get a good image, even though it looked too dark on the camera preview.

7. White Balance.

Getting this right in the camera will save you time. Many SLR’s have a white balance custom fuction, where you photograph a white or gray image and tell the camera to use that for your white reference. If you can’t do that, try the canned settings on the camera and review the playback of samples to see the best playback of color tones to the actual room colors. Or, you can shoot RAW and fix it at import.

8. Focus.

Often cameras will have trouble focusing in dark settings. You may want to switch to manual focus, compose a test shot at the same distance to your subject, playback and zoom in the image to verify crisp focus on your subject. Then you’ll avoid the “hunting” and missed focus of your images when the action starts.

9. Post Processing.

I already mentioned pushing dark images and adjusting white balance. Another good tool for dark image editing is noise reduction. When you shoot at high ISO, you often get digital noise on the image. Running a noise reduction will remove some of that noise, but at the expense of image detail or sharpness. You’ll have to weigh the amount and benefits of noise reduction in your case.

Please make sure that you don’t take photos where you are not allowed, but given permission and these techniques, you can take some great indoor images in dark settings!

By John Huegel