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음식사진 보정 | 감성적인 색감과 디테일 살리는 방법 | 포토샵 강좌

March 25, 2020


Hello? This is Dr. Film. In the past, I uploaded a lecture video on how to take good food photos on my channel. Since then, many of us have asked questions about the color and atmosphere of the photo. Take advantage of the various photography techniques I have previously described. That way, you can take pretty good pictures with your smartphone. In the end, however, I think correction is the factor that determines the final quality of a photo. Any decent correction is possible using the filter of the smartphone camera application. If you use Photoshop or Lightroom, you can do much more professional correction. What you see here is the original RAW file of the food photo I was taking while preparing for the lecture. Compared to JPG, it feels like water has been drained slightly. In the case of RAW, it is a method of saving raw pictures without any special processing. That is why the correction tolerance increases, so I can express the color and tone I want widely. I think you can think of a more beautiful color drawn on white, unspoiled drawing paper. Today, we will focus on Photoshop, a correction program that is familiar to many people. The basic concept of calibration is similar. So if you just watch today’s lecture video, you will be familiar with most programs. When importing RAW files, the camera low filter is automatically executed. Contrast?! Dehaze?! There are many terms that seem difficult. Don’t be afraid, please follow each one slowly. The first part to check for correction is white balance. You can think of this as a concept to express white as white. At the time of shooting, it should be set to an appropriate value according to the type of ambient light. However, unless it is a special case, you can set the white balance automatically and shoot. This picture was taken with an auto white balance just under the fluorescent light. So a value close to 4000K was set. If you set this value a little higher, you can add a warm sensibility to the photo. The next item to look at is the histogram at the top right. The left side of the graph shows the amount of images distributed in the dark areas and the bright areas toward the right. Normally, in the case of photos taken with proper exposure, a graph of the normal distribution is drawn based on the central part of the histogram. So, if the graph is heavily skewed to the left or right, it is necessary to set the proper exposure with Exposure, which can adjust the overall brightness of the picture. The pictures I took are slightly skewed with bright parts. Let’s reduce the exposure slightly and even the brightness of the overall picture. Once you’ve set up the proper exposure, you’ll need to set the detailed tone of the photo. Contrast is one of the elements that express a flat photograph in three dimensions. Contrast means light and dark in the picture, and the difference between light and dark is called contrast. When the contrast is high, not only the three-dimensional effect, but also the clarity is increased. The factors that determine this are: First of all, there is Contrast, and increasing the value can improve the sharpness of the picture. But this touches the tone of the whole picture. So the overall contrast changes depending on the light distributed in the picture. Second, there are Highlights and White, which determine the details of the bright parts of the photo. Let’s divide the brightness of the photo from 0 to 100. Highlights determine the contrast between 70 and 90, and Wihite between 90 and 100. Third, the dark areas of the picture are set to Shadows and Black. Shadows determine the contrast between 30 and 10 and Black between 10 and 0. Let’s increase the values of Contrasts and Highlights and White and decrease the values of Shadows and Black. Doing so increases the contrast of contrast. You will be able to express sharp photos that take advantage of the three-dimensional effect. This is a suitable correction method when you want to produce a rough and intense photo. Let’s lower the values of Contrasts and Highlights and White and increase the values of Shadows and Black. The contrast is weakened to create a soft and cozy image. This is a suitable correction method for producing emotional food photos. However, there is a fatal disadvantage that decreases clarity and three-dimensionality. Clarity and Texture are the ones that can improve clarity while overcoming these shortcomings. Clarity only adjusts the contrast of the middle tone in the edges and lines where the picture is a specific part. Therefore, if you increase Clarity, you can get the effect of clear lines. You will be able to improve the clarity without touching the whole tone. However, if you increase this value too much, certain parts of the food may be distorted. Adjust it appropriately so as to preserve the three-dimensional effect. And the texture of food can be decided by Texture. In the case of Texture, there is little distortion of contrast even if the value is increased or decreased. So you can effectively correct the flat texture. Lastly, in the case of Dehaze, it is a function that can add or reduce the misty feeling on the overall picture. Increase this value if you want to produce a clean, intense photo. If you want to produce a dreamy emotional photo, lower this value slightly. Once you have decided on the overall feeling of the photo, let’s decide the color of the photo next. First, let’s take a look at Saturation and Vibrance. In the case of saturation, this is a function to adjust the intensity of the overall color. If it is too high, it will cause a fatal disadvantage that the color border will collapse. To compensate for this, the color is darkened by vibrance while saturation is applied. In the case of Vibrance, unlike Saturation, even if the value is increased, the color is less crushed. After that, 8 colors from Red to Magenta can be determined by HSL or Hue / Saturation / Luminance. In general, the deeper the warm color of the red line, the more we feel “delicious”. In the case of food photography, the color is corrected in a direction that emphasizes the red color properly. Hue determines the color of the picture. Pulling the values from Red to Yellow to the left emphasizes the red feeling. And in the case of Green, it is good to pull slightly to the right to preserve the feeling of fresh green. For Saturation and Luminance, increase the values from Red to Green slightly by pulling them to the right. By doing so, you can express a refreshing color. Now let’s go into the Tone curve. This is a function to set the overall tone of the photo as a curve. Dot the point at the intersection of the squares, then slightly raise the graph in the lower left corner. The shadows are softened, allowing for a more emotional photo. When the overall tone and color have been corrected, remove the noise in the photo in the Detail section. Press Open Image to enter the Photoshop main screen. I raised the white balance before, and I feel red overall. Go to Color Balance and increase the blue value of the shadow and middle tone and the red value of the highlight. So, let’s separate dark tone from blue and bright tone from red. This makes the complementary color contrast stronger and makes the photo look more vivid. Since it was shot with a ponka, the sharpness of the picture looks a little off. To overcome this, we will finally use a filter called High Pass. Copy the background layer and apply the overlay to the copied layer. Then run the High Pass in the Filer section and adjust the Radius value accordingly. This will make the details of the photo more natural than the Sharpen effect. Today we looked at how to retouch food photos emotionally and in detail. Understand only the basic concepts of photo tone and color. That way, you will be able to make the pictures you take harder and more beautiful. Looking forward to making your daily life more beautiful with your smartphone! I will finish today’s lecture! Then! See you!

3 Comments

  • Reply 러블린TV Lovelyn March 20, 2020 at 1:44 pm

    정말 제대로 한번 배워보고 싶어요 #_#

  • Reply 김뚜껑 March 21, 2020 at 2:56 pm

    정말 잘봤습니다. 저는 독학으로 하고 있는데 많은 도움이 됐습니다. 혹시 다음 강의영상찍으실 일 있다면 살짝만 천천히 해주실 수 있나요? 그냥 개인적인 생각입니다.ㅎㅎㅎ 항상 동영상 잘보고 있습니다.

  • Reply 이진호 March 25, 2020 at 12:52 am

    혹시 인스타그램 하시나요?

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