Friday, February 19, 2016

How to Learn Color Correction

How to Learn Color Correction

Digital imaging software has made the task of color correcting photographs much less difficult and time-consuming than in past technologies. By using a color balance tool, results can be seen instantly. The process of how to correct a color shift can be easily learned through this tool without having to waste numerous sheets of photographic paper. An understanding of color temperature is an adequate start, and simply learning colors and their complements will finish the job.

Instructions

    1

    Set the correct color balance on your digital camera, or choose the appropriate film given the lighting situation. This helps to reduce time spent later making color corrections. Some digital cameras allow you to set a specific light temperature, which is measured in degrees Kelvin. A setting of 3200K is appropriate for indoor light, which in film terms would be known as tungsten-balanced film. Daylight-balanced film measures 5500K, which can also be set by a digital camera.

    2

    Consider whether fluorescent lights are present. These tube lights that are common in public buildings are problematic for color correction, as the wavelengths they emit are not standard. Their temperature hovers around 4200K, which can be more easily dealt with by adjusting digital camera settings. However, film-wise, an FL-B filter must be used on your lens if shooting with tungsten-balanced film, or an FL-D filter with daylight-balanced film.

    3

    Download the images to your computer, or scan your negatives so that you have digital files to work with. Open the images in your digital editing software. The amount of control you will have on color correction will vary by the complexity of the program, but most have color balance controls based on blue, yellow, red, cyan, green and magenta. Open your image file and navigate to the color balance controls.

    4

    Drag the color balance scale toward magenta if there is any green present in your image. Fluorescent lighting is the cause of green-tinted images. Conversely, incorrect color balance settings on your digital camera may cause magenta-tinted images, which are fixed by dragging the scale toward green.

    5

    Pull the scale toward yellow if the image appears too blue. The color temperature of daylight is blue, and this may be exaggerated if tungsten-balanced film is used in daylight. In contrast, daylight-balanced film shot in tungsten-balanced light will appear too yellow; pull the scale toward blue.

    6

    Adjust the scale toward cyan if the image appears overly red. Red-tinted images are created in very low light, such as candlelight, in both film and digital cameras. Adding red to an image may be helpful for certain types of daylight that create cyan.

    7

    Use a combination of these three scales if necessary, which is often the case. If an image contains multiple types of lighting, such as both daylight and tungsten, selecting specific parts of the image and balancing them separately may be required.


How to Learn Color Correction

Digital imaging software has made the task of color correcting photographs much less difficult and time-consuming than in past technologies. By using a color balance tool, results can be seen instantly. The process of how to correct a color shift can be easily learned through this tool without having to waste numerous sheets of photographic paper. An understanding of color temperature is an adequate start, and simply learning colors and their complements will finish the job.

Instructions

    1

    Set the correct color balance on your digital camera, or choose the appropriate film given the lighting situation. This helps to reduce time spent later making color corrections. Some digital cameras allow you to set a specific light temperature, which is measured in degrees Kelvin. A setting of 3200K is appropriate for indoor light, which in film terms would be known as tungsten-balanced film. Daylight-balanced film measures 5500K, which can also be set by a digital camera.

    2

    Consider whether fluorescent lights are present. These tube lights that are common in public buildings are problematic for color correction, as the wavelengths they emit are not standard. Their temperature hovers around 4200K, which can be more easily dealt with by adjusting digital camera settings. However, film-wise, an FL-B filter must be used on your lens if shooting with tungsten-balanced film, or an FL-D filter with daylight-balanced film.

    3

    Download the images to your computer, or scan your negatives so that you have digital files to work with. Open the images in your digital editing software. The amount of control you will have on color correction will vary by the complexity of the program, but most have color balance controls based on blue, yellow, red, cyan, green and magenta. Open your image file and navigate to the color balance controls.

    4

    Drag the color balance scale toward magenta if there is any green present in your image. Fluorescent lighting is the cause of green-tinted images. Conversely, incorrect color balance settings on your digital camera may cause magenta-tinted images, which are fixed by dragging the scale toward green.

    5

    Pull the scale toward yellow if the image appears too blue. The color temperature of daylight is blue, and this may be exaggerated if tungsten-balanced film is used in daylight. In contrast, daylight-balanced film shot in tungsten-balanced light will appear too yellow; pull the scale toward blue.

    6

    Adjust the scale toward cyan if the image appears overly red. Red-tinted images are created in very low light, such as candlelight, in both film and digital cameras. Adding red to an image may be helpful for certain types of daylight that create cyan.

    7

    Use a combination of these three scales if necessary, which is often the case. If an image contains multiple types of lighting, such as both daylight and tungsten, selecting specific parts of the image and balancing them separately may be required.



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