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Cover: Photoshop Class #42: Reading Histogram & Levels
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This is the final result of this episode, a night city panorama that was previously foggy and dull now has restored contrast, with darker blacks, brighter lights, and cleaner colors. The key is to read the histogram and then use levels. Let's get started. Hello, welcome back to the complete Adobe Photoshop series from Cerdas Inovasi Digital. We're entering the adjustment and color grading module. The foundation is the histogram, a graph showing the distribution of pixel brightness. If we can read the histogram, we know what's wrong with the photo and how to fix it using levels.
Open the foggy night city photo. Add an adjustment layer levels. In the properties panel, the histogram appears. The left side represents shadows or blacks, the center is midtones, and the right is the bright areas. The height of the graph shows how many pixels are at that brightness level.
Notice the histogram of this photo. There is a gap at the far left and at the far right. That means there are no pixels that are truly black or truly white. That's why the photo looks dull and foggy.
The black triangle line under the histogram moves to the right until it touches the start of the graph. All pixels to the left of the triangle become deep black. The sky and city water immediately appear more vivid.
The white triangle line moves to the left until it touches the end of the graph on the right. Building lights and water reflections become brighter and more luminous. Don't move it too far, because light details can disappear into plain white. The gray triangle in the center is gamma.
Shift the triangle slightly to the right to darken the mid-tones. So the night scene is stronger without changing the black and white points. Moving left means brightening the mid-tones.
Turn off and on the layer level to compare. Then open the properties panel again. The histogram is now spread from left to right. Save PSD and export JPG Done
We have read the histogram, recognized low contrast photos, and used levels with the black, white, and gamma triangles. In the next episode, we will use the kerf, the most flexible contrast and color tool. Need to edit product photos for marketplaces, retouch photos, design posters, or social media content? Cerdas Inovasi Digital provides photo editing and graphic design services, as well as Photoshop courses from beginner to advanced. Want to master the entire series? 102 episodes from the interface to the final project? All episodes, complete with step-by-step PDF guides, source images, and layered PSD files, are available for premium tutorial subscribers. Subscribe starting at Rp69.000 per month, save 28% with the 12-month package, or pay once Rp999.000 for lifetime access. Want just one class? Buy a single class with lifetime access. Subscribe now at the premium page cerdasinovasidigital.com Contact us via WhatsApp, or visit cerdasinovasidigital.com Thank you for watching, see you in the next episode.
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