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Adjusting Levels with a Histogram

Lesson 34 from: Adobe Photoshop: The Complete Guide Bootcamp

Ben Willmore

Adjusting Levels with a Histogram

Lesson 34 from: Adobe Photoshop: The Complete Guide Bootcamp

Ben Willmore

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Lesson Info

34. Adjusting Levels with a Histogram

Lessons

Class Trailer
1

Introduction To Adobe Photoshop

04:05
2

Bridge vs. Lightroom

06:39
3

Tour of Photoshop Interface

18:21
4

Overview of Bridge Workspace

07:42
5

Overview of Lightroom Workspace

11:21
6

Lightroom Preferences - Saving Documents

08:19
7

How To Use Camera Raw in Adobe Photoshop 2020

05:10
8

Overview of Basic Adjustment Sliders

13:09
9

Developing Raw Images

30:33
10

Editing with the Effects and HLS Tabs

09:12
11

How to Save Images

03:37
12

Using the Transform Tool

04:48
13

Making Selections in Adobe Photoshop 2020

06:03
14

Selection Tools

05:55
15

Combining Selection Tools

07:37
16

Using Automated Selection Tools

17:34
17

Quick Mask Mode

05:07
18

Select Menu Essentials

21:28
19

Using Layers in Adobe Photoshop 2020

13:00
20

Align Active Layers

07:29
21

Creating a New Layer

06:15
22

Creating a Clipping Mask

03:02
23

Using Effects on Layers

11:24
24

Using Adjustment Layers

16:44
25

Using the Shape Tool

04:39
26

Create a Layer Mask Using the Selection Tool

04:39
27

Masking Multiple Images Together

15:15
28

Using Layer Masks to Remove People

10:50
29

Using Layer Masks to Replace Sky

10:04
30

Adding Texture to Images

09:11
31

Layering to Create Realistic Depth

05:35
32

Adjustment Layers in Adobe Photoshop 2020

05:29
33

Optimizing Grayscale with Levels

10:59
34

Adjusting Levels with a Histogram

03:37
35

Understanding Curves

06:18
36

Editing an Image Using Curves

18:41
37

Editing with Shadows/Highlights Adjustment

07:19
38

Dodge and Burn Using Quick Mask Mode

07:14
39

Editing with Blending Modes

08:04
40

Color Theory

05:59
41

Curves for Color

16:52
42

Hue and Saturation Adjustments

08:59
43

Isolating Colors Using Hue/Saturation Adjustment

13:33
44

Match Colors Using Numbers

16:59
45

Adjusting Skin Tones

05:25
46

Retouching Essentials In Adobe Camera Raw

10:52
47

Retouching with the Spot Healing Brush

07:53
48

Retouching with the Clone Stamp

06:51
49

Retouching with the Healing Brush

04:34
50

Retouching Using Multiple Retouching Tools

13:07
51

Extending an Edge with Content Aware

03:42
52

Clone Between Documents

13:19
53

Crop Tool

10:07
54

Frame Tool

02:59
55

Eye Dropper and Color Sampler Tools

08:14
56

Paint Brush Tools

13:33
57

History Brush Tool

06:27
58

Eraser and Gradient Tools

03:06
59

Brush Flow and Opacity Settings

04:17
60

Blur and Shape Tools

11:06
61

Dissolve Mode

09:24
62

Multiply Mode

15:29
63

Screen Mode

14:08
64

Hard Light Mode

14:54
65

Hue, Saturation, and Color Modes

11:31
66

Smart Filters

11:32
67

High Pass Filter

13:40
68

Blur Filter

05:59
69

Filter Gallery

07:42
70

Adaptive Wide Angle Filter

04:43
71

Combing Filters and Features

04:45
72

Select and Mask

20:04
73

Manually Select and Mask

08:08
74

Creating a Clean Background

21:19
75

Changing the Background

13:34
76

Smart Object Overview

08:37
77

Nested Smart Objects

09:55
78

Scale and Warp Smart Objects

09:08
79

Replace Contents

06:55
80

Raw Smart Objects

10:20
81

Multiple Instances of a Smart Object

12:59
82

Creating a Mockup Using Smart Objects

05:42
83

Panoramas

13:15
84

HDR

11:20
85

Focus Stacking

04:02
86

Time-lapse

11:18
87

Light Painting Composite

08:05
88

Remove Moire Patterns

06:11
89

Remove Similar Objects At Once

09:52
90

Remove Objects Across an Entire Image

05:46
91

Replace a Repeating Pattern

06:50
92

Clone from Multiple Areas Using the Clone Source Panel

10:27
93

Remove an Object with a Complex Background

07:49
94

Frequency Separation to Remove Staining and Blemishes

12:27
95

Warping

11:03
96

Liquify

14:02
97

Puppet Warp

12:52
98

Displacement Map

10:36
99

Polar Coordinates

07:19
100

Organize Your Layers

11:02
101

Layer Styles: Bevel and Emboss

02:59
102

Layer Style: Knockout Deep

12:34
103

Blending Options: Blend if

13:18
104

Blending Options: Colorize Black and White Image

06:27
105

Layer Comps

08:30
106

Black-Only Shadows

06:07
107

Create a Content Aware Fill Action

08:46
108

Create a Desaturate Edges Action

07:42
109

Create an Antique Color Action

13:52
110

Create a Contour Map Action

10:20
111

Faux Sunset Action

07:20
112

Photo Credit Action

05:54
113

Create Sharable Actions

07:31
114

Common Troubleshooting Issues Part 1

10:23
115

Common Troubleshooting Issues Part 2

07:57
116

Image Compatibility with Lightroom

03:29
117

Scratch Disk Is Full

06:02
118

Preview Thumbnail

02:10

Lesson Info

Adjusting Levels with a Histogram

Let's say this is a scanned photograph. You have an old photo of you. You put it on a flatbed scanner, hit the scan button, and here it is in photo shop. Well, if I come in here and choose levels, you should be aware of the bar chart that's in there. That bar chart is called a hist. A gram in all history Graham does is it tells you which brightness levels are found in your picture, in which ones are not. So. If I zoom up on this, if you compare that bar chart to the bar that's down below, that has those brightness levels in it. If you were to pick any shade from that bar and goes straight up until you hit the bar chart, if there's a bar on the bar chart than that shade is found somewhere within your picture. If on the other hand, you choose a shade, you go straight up and there's nothing in the bar chart at all. Then that is not found in your picture. It's not even a single speck of it is in your picture. So what that tells me with this particular hissed a gram is it's empty over here ...

on the left side, and that means the darker shade in the entire picture is right here. And if I go straight down from it, it's exactly that bright. Well, doesn't this slider here for serious to black? And if I pull it over, let's say, just by chance to right there, wouldn't that force the shade that has found directly below two black? That's what it does. And if that happened to be the darkest shade in our photo now the darker shade is black on the opposite side of the history. Graham, you notice a gap over here, which indicates the shades down here are nowhere to be found in the image. There's nothing near white in this photograph, but if I pull this slider in until it touches the history Graham, then that's gonna force whatever is directly below this toe white. And now the brightest area of her picture is white, and therefore, if I were to click OK and open levels again, I'd see an updated, hissed a gram and updated. One would span the entire width because they forced the darkest area to black in the bread hysteria. White zoom out. Look at her picture. There's a preview check box here. If I turn it off, you'll see before turn it back on and you'll see after then. After doing that, If the image is a little too dark or too bright, I could grab the middle slider and brighten it up or darken it up. Then, if I have that printer I described earlier where I'm printing on really cheap paper using ink, and I find that the darkest part of the image I lose the detail and the lightest I could get, I should say the darkest I can get where I can still see detail. Let's just say it was 90% brightness. Well, I could pull this in until it points at 90% and therefore the darkest part of my picture is not gonna be black. It's gonna be what this points at, and you can use the numbers that are in here to figure out exactly what setting you're using its fans from zero, which means no light whatsoever 2 to 55 which is a much light as you can possibly get. And that's because a normal image has 256 brightness levels, and if you count, zero is a number. That's 256. So you could figure out if this is 100% of the light to 55 then what would be 1% of this number? Well, 10% of it will lead 25.51% would be 2. So if you want to convert, you can take whatever percentage you want and multiply it by 2.55 to figure out what it would be in this numbering system.

Class Materials

Bonus Materials with Purchase

Lessons 1 - 6 - Handbook 1: Introduction to Adobe Photoshop
Lessons 7 - 12 - Handbook 2: How to Use Camera Raw
Lessons 13 - 18 - Handbook 3: Making Selections
Lessons 19 - 24 - Handbook 4: Using Layers
Lessons 25 - 30 - Handbook 5: Using Layer Masks
Lessons 31 - 38 - Handbook 6: Using Adjustment Layers
Lessons 39 - 44 - Handbook 7: Color Theory
Lessons 45 - 51 - Handbook 8: Retouching Essentials
Lessons 52 - 59 - Handbook 9: Tools Panel
Lessons 60 - 64 - Handbook 10: Layer Blending Modes
Lessons 65 - 70 - Handbook 11: How to Use Filters
Lessons 71 - 74 - Handbook 12: Advanced Masks
Lessons 75 - 81 - Handbook 13: Using Smart Objects
Lessons 82 - 86 - Handbook 14: Photography for Photoshop
Lessons 87 - 93 - Handbook 15: Advanced Photo Retouching
Lessons 94 - 98 - Handbook 16: Warp, Blend, Liquify
Lessons 99 - 105 - Handbook 17: Advanced Layers
Lessons 106 - 112 - Handbook 18: Actions
Lessons 113 - 117 - Handbook 19: Troubleshooting Issues
Practice Images 1: Introduction to Adobe Photoshop
Practice Images 2: How to Use Camera Raw
Practice Images 3: Making Selections
Practice Images 4: Using Layers
Practice Images 5: Using Layer Masks
Practice Images 6: Using Adjustment Layers
Practice Images 7: Color Theory
Practice Images 8: Retouching Essentials
Practice Images 9: Tools Panel
Practice Images 10: Layer Blending Modes
Practice Images 11: How to Use Filters
Practice Images 12: Advanced Masks
Practice Images 13: Using Smart Objects
Practice Images 14: Photography for Photoshop
Practice Images 15: Advanced Photo Retouching
Practice Images 16: Warp, Blend, Liquify
Practice Images 17: Advanced Layers
Practice Images 18: Actions
Practice Images 19: Troubleshooting Issues

Ratings and Reviews

Noel Ice
 

I am an avid reader of photoshop books, and an avid watcher of photoshop tutorials. I have attended (internet) several hundred of presentations. In the course of this endeavor, I have found my own favorite photoshop websites and instructors. Creative Live is probably the bargain out there as well as among the top three internet course sites. I have to say with great enthusiasm that the best Photoshop instructor is Ben Willmore. There are many great ones, but truly, he is the best I have come across, and, as indicated above, I have watched literally 100s of tutorials on Photoshop. I have seen all of Ben's courses, I think, and among them, this one is the best by far, and that is saying a lot, because that makes this course the best course on Photoshop to be found anywhere. I am going back and watching it twice. Not only is it comprehensive, but Ben is so familiar with his subject that he is able to explain it like no other. This is crème de la crème of Photoshop classes. I have been wanting to write this review for some time because I have been so thoroughly impressed with everything about this class!

ford smith
 

Highly recommended if you want to take your Photoshop skills to the next level. Ben Willmore is clear, concise, and professional. He also has a good speaking voice that is not distracting but also keeps you engaged. Lastly, I would recommend that as you become more advanced, increasing the speed of the video (one of the options given on the menu)...especially if you've gone through the course once before and maybe want to watch it again. The double speed is very efficient as you become more advanced in Photoshop. Thanks for the help Ben!

a Creativelive Student
 

Wow. I cannot communicate the value of this course!! The true value in this course is how the instructor identifies workflows you'll need before you'll ever realize it, repeats important information without it becoming annoying, and explains the "why" behind the techniques so well that even if you forget the exact method, you can figure it out via the principles learned. Excellent value, excellent material, excellent instructor!!!

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