The human eye is very good at adapting to complicated lighting situations. The iris can open up to see details in shadowy areas, and it can close down to avoid the pain of bright light.

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Editing With The Gimp. Open the middle exposure picture. From the File menu, select Open as Layers (default shortcut Ctrl+Alt+O) and shift-click to select both the dark and the bright exposure variants of the picture. This will add two layers, which you might want to rename to 'light' and 'dark' for example. My images aren't perfectly aligned.

A single image from a camera, however, is limited to one exposure setting at a time, and the film or sensor may not be able to retain details in both light and dark extremes.

If you take multiple exposures, however, this can be blended later for excellent detail over a very wide range of exposure. Many cameras offer an automatic 'bracketing' feature to help with this task, though any manually-adustable camera can be used as well.

Take at least two shots; one shot which is exposed brightly enough to capture the details in dark areas, and one shot which is exposed darkly enough to keep the details in bright regions. If you're using a tripod, bracketing for shutter duration is the better course, but bracketing by aperture is usually acceptable. These exposures may be two or more full stops apart.

Darker Exposure Base Exposure Final Blend. Layer your exposures with the darkest exposure on top. Place a black layer mask on the dark exposure so it is now invisible. Select the bottom exposure, and now go up to SelectColor Range. A box will appear. At the top of this box you will see Sampled Colors.
How to create a exposure blend in GIMP This is now the actual tutorial step by step tutorial where we are going to create a exposure blend from the tree lamp images. First open the GIMP. Then click on File and then choose Open.
GIMP (stands from GNU Image Manipulation Program) is an open source image and photo editing tool. In short, GIMP is the free and open-source alternative to Photoshop, available for almost all operating systems (Linux, Microsoft Windows, OS X). Image blending is a common task. It can be applied with many ways.
Try Exposure Blend plugin for GIMP to fake HDR. Digital cameras have relatively narrow dynamic range with respect to human eye, i.e. The difference between the brightest and the darkest grades of light the camera may capture in one shot is limited. This is the reason why some stunning scenes become badly exposed photos (with absolutely black.

There are several ways of making a 'mask' which will combine the two images nicely; we'll only try one such method here. This method works in most types of exposure-blending situations.

In your photo editor, copy and align the two exposures, with the darker-looking image above the lighter-looking one. Create a layer mask for the darker image. Select the entire lighter image, and copy it into the mask of the darker image. It should appear as a grayscale copy.

The mask allows shadowy details to appear, while suppressing the overexposed bright areas. However, a closer look may show that there are sharpness problems near contrasty edges. Select the newly made mask and apply a small blur, such as a three-pixel gaussian blur, to smooth out the transitions from light to dark exposures. If the blur is too large, halos will appear along contrasting edges.

Once you've got the right blending, you will likely notice that the images have lost some of their colorful lustre. This is because color saturation is related to the overall range of the exposure, and blending across the expanded exposure range has not expanded the color range as well. Flatten the image, and boost your overall color saturation to taste.

GIMP (standsfrom GNU Image Manipulation Program) is an open source image andphoto editing tool. In short, GIMP is the free and open-sourcealternative to Photoshop, available for almost all operatingsystems (Linux, Microsoft Windows, OS X).

Image blending is a common task. It can be appliedwith many ways. Here is a simple example.

According to this UN report, more people worldwide havemobile phones than toilets. I want to write an article about thisreport and I will blend two images to use the result as the articleimage.

Source images

I will use two public domain images. The first one showsmen silhouettes using mobile phone photos:

Second image shows a ground toilete inBotswana:

Open images

From the Menu, select: File → Open as Layers…

Use CTRL + CLICK to select the images. The result is

Resize canvas and arrange images

From the Menu, select: Image → Canvas Size…

Using the Move Tool from the Toolbox window

Place second image to the right side of canvas

Add Layer Mask

From the Layers window, select the second image and Add LayerMask

Hit Add

Blend images

From the Toolbox window, select the Blend Tool

Click and drag the Blend Tool in the images overlap

The result is

Blending result

This is the finally blending result:

Experimenting with different parameters can give even betterresults.

Entrepreneur | Full-stack developer | Founder of MediSign Ltd. I have over 15 years of professional experience designing and developing web applications. I am also very experienced in managing (web) projects.

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