1024programmer Photoshop Basic tutorial on understanding the histogram of PS high/medium/low-key pictures – design knowledge

Basic tutorial on understanding the histogram of PS high/medium/low-key pictures – design knowledge

The histogram is used to quantify exposure, also called a histogram, which is a two-dimensional coordinate chart. The mode axis in the figure represents the brightness of the image, from left to right, gradually transitioning from complete black to full White. The vertical axis represents the relative number of pixels in this brightness range in the image. When the color block in the histogram is biased to the left, it means that the overall tone of the photo is darker, which can also be understood as the photo is underexposed. When the color blocks are concentrated on the right side, it means that the overall tone of the photo is bright. Unless it is required for a special tone, it can be understood that the photo is overexposed. A good photo should have both light and dark details. On the histogram That is, the color blocks are distributed from left to right, and the peaks on both sides are at the lowest, that is, the two sides of the histogram are not bordered.

A mid-tone portrait digital photo

ps tutorial: www.16xx8.com_PhotoShop basic tutorial on understanding the histogram of high/medium/low-key pictures  ps tutorial:www  .16xx8.com_Learn to see the histogram of digital portrait photos

photoshop tutorialps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos ps tutorial: www.16xx8.com_Learn to look at portraits  Histogram of digital photos ps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos

ps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos

Two low-key portrait digital photos

Tone is the light and dark relationship between the scene and the light and dark levels in the image. It is the basic factor that constitutes the image, and it is also one of the important means of expression in modeling processing, picture composition, setting off the atmosphere, and expressing emotions. Due to differences in light and shade and contrast, there are two ways to classify tones. According to the lightness and darkness of the tone, it can be divided into bright tone (high tone), dark tone (low tone) and mid-tone; according to the contrast, it can be divided into hard tone, soft tone and mid-tone.

Opening a digital photo of an indoor portrait, we see that the photo has a very dark tone, but we cannot arbitrarily conclude that it is underexposed. Let’s take a look at the histogram of this photo. The color blocks in the histogram are to the left, and the peaks are towards dark tones, but there are color blocks distributed from left to right, so we judge that it is a low-key effect photo, that is, a dark-toned photo, rather than underexposure.

ps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos ps tutorial: www.16xx8.  com_Learn to see the histogram of digital portrait photos ps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos

Three high-profile digital photos of portraits

Open a digital photo of an indoor portrait with a bright tone. In the photo, the tones ranging from white to light gray occupy most of the picture, with a small amount of deep black tones serving as embellishments. The whole photo gives people a bright, pure and elegant feeling. The color blocks in the histogram of this photo are concentrated to the right, and the peaks are toward bright tones, making it a high-key photo, that is, a bright photo, rather than an overexposed photo.

ps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos ps tutorial: www.16xx8.  com_Learn to see the histogram of digital portrait photos ps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos

Four knowledge points: Mid-tones are mainly gray tones, between tones and low-keys, with small contrast and rich levels. Cinema images are composed of tones ranging from white to light gray, dark gray to black; low-key is based on dark tones. The tone levels from gray to black account for the vast majority of the picture. A small amount of white plays a role in contrasting the theater tone, giving people a sense of solemnity, solemnity and resoluteness. The high-key tone gradation from white to light gray occupies the majority of the picture. Most of them, plus a small amount of deep black tones, give people a bright, pure and light feeling.

5. Experience: We do not rely on the feeling of the eyes to determine whether the exposure is appropriate, and the computer monitor cannot be used as a basis for identification. The histogram can become a reference standard for us to judge whether the photo exposure is accurate. Although it is not absolutely accurate, it is the best way. You can make a specific judgment based on the principle of shadow tone when applying it.

The histogram is used to quantify exposure, also called a histogram. It is a two-dimensional coordinate chart. The mode axis in the figure represents the brightness of the image, from left to right, gradually transitioning from complete black to complete white. Vertical The axis represents the relative number of pixels in this brightness range in the image. When the color block in the histogram is biased to the left, it means that the overall tone of the photo is darker, which can also be understood as the photo is underexposed. When the color block When it is concentrated on the right side, it means that the overall tone of the photo is bright. Unless it is required for a special tone, it can be understood that the photo is overexposed. A good photo should have both light and dark details, which are color blocks on the histogram. There is a distribution from left to right, and the peaks on both sides are at the lowest, that is, the two sides of the histogram are not bordered.

A mid-tone portrait digital photo

ps tutorial: www.16xx8.com_PhotoShop basic tutorial on understanding the histogram of high/medium/low-key pictures  ps tutorial:www  .16xx8.com_Learn to see the histogram of digital portrait photos

photoshop tutorialps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos ps tutorial: www.16xx8.com_Learn to look at portraits  Histogram of digital photos ps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos

ps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos

Two low-key portrait digital photos

Tone is the light and dark relationship between the scene and the light and dark levels in the image. It is the basic factor that constitutes the image, and it is also one of the important means of expression in modeling processing, picture composition, setting off the atmosphere, and expressing emotions. Due to differences in light and shade and contrast, there are two ways to classify tones. According to the lightness and darkness of the tone, it can be divided into bright tone (high tone), dark tone (low tone) and mid-tone; according to the contrast, it can be divided into hard tone, soft tone and mid-tone.

Opening a digital photo of an indoor portrait, we see that the photo has a very dark tone, but we cannot arbitrarily conclude that it is underexposed. Let’s take a look at the histogram of this photo. The color blocks in the histogram are to the left, and the peaks are towards dark tones, but there are color blocks distributed from left to right, so we judge that it is a low-key effect photo, that is, a dark-toned photo, rather than underexposure.

ps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos ps tutorial: www.16xx8.  com_Learn to see the histogram of digital portrait photos ps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos

Three high-profile digital photos of portraits

Open a digital photo of an indoor portrait with a bright tone. In the photo, the tones ranging from white to light gray occupy most of the picture, with a small amount of deep black tones serving as embellishments. The whole photo gives people a bright, pure and elegant feeling. The color blocks in the histogram of this photo are concentrated to the right, and the peaks are toward bright tones, making it a high-key photo, that is, a bright photo, rather than an overexposed photo.

ps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos ps tutorial: www.16xx8.  com_Learn to see the histogram of digital portrait photos ps tutorial: www.16xx8.com_Learn to see the histogram of digital portrait photos

Four knowledge points: Mid-tones are mainly gray tones, between tones and low-keys, with small contrast and rich levels. Cinema images are composed of tones ranging from white to light gray, dark gray to black; low-key is based on dark tones. The tone levels from gray to black account for the vast majority of the picture. A small amount of white plays a role in contrasting the theater tone, giving people a sense of solemnity, solemnity and resoluteness. The high-key tone gradation from white to light gray occupies the majority of the picture. Most of them, plus a small amount of deep black tones, give people a bright, pure and light feeling.

5. Experience: We do not rely on the feeling of the eyes to determine whether the exposure is appropriate, and the computer monitor cannot be used as a basis for identification. The histogram can become a reference standard for us to judge whether the photo exposure is accurate. Although it is not absolutely accurate, it is the best way. You can make a specific judgment based on the principle of shadow tone when applying it.

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