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  • Digital Photography Post Processing

    Kent Messamore

    9/8/2013

  • JKM 9/8/2013 Enhanced Images 2

    What we will cover Post Processing

    Photoshop, Lightroom, Elements, and others

    JPEG or RAW

    Photoshop Elements Workflow

    Organization, Create, share

    Photoshop Elements Editing Tonal Correction

    Layers, Selections, and Masks

    Color Correction

    Adobe Camera RAW

    Retouching

    Black & White Conversion

    Sharpening

    Printing

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    Processing software Photoshop is high end Adobe.com ($622) Recommended (SD- $335)

    Lightroom PC/MAC - Adobe.com($138) Recommended (SD -$79)

    Adobe Creative Cloud (monthly subscription) SD $20/Month

    Photoshop Elements ($63) - Adobe.com

    ACDC Pro ($60)

    Paint Shop Pro ($50) - corel.com

    Camera Manufacturers software (usually free)

    Gimp (free) gimp.org

    Gimpshop (free) Gimp hacked to resemble Photoshop

    Googles Picasa (free) - picasa.google.com

    http://www.adobe.com/http://www.adobe.com/http://www.adobe.com/http://www.corel.com/http://www.gimp.org/http://www.picasa.google.com/

  • Photoshop Photoshop is major image editing software for professionals Designed to support Graphic Artists, Photographers, Web

    Developers, Prepress, Architects, Medical Imagers, 3D Artists, Videographers, Comic Book Artists

    Provides to Photographers, Workflow, Camera Raw Conversion, Tonal Correction, Color Correction, Retouching, Black & White Conversion, Sharpening, and Printing

    Offers to Photographers tools such as Layers, Selection, Pen tool (Bezier Curves), Cloning, Curves, Channels, Masks, Blending Modes

    Adobe has created an organizing application called Bridge to support multiple Adobe Applications.

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  • Bridge an organizer for Photoshop and other Adobe Applications

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  • Photoshop CS5

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    Tool Box

    Tool Option Bar

    Layer Pallet

    Image Area

  • Photoshop CS5 Tools

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    Hand Tool Forground Color Background Color

    Quick Mask

    Move Tool

    Type Tool

    Zoom

    Switch Foreground/Background

    Set Default

  • Layers

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    Link Layers

    Add Layer Style Add

    Mask Add

    Adjustment Layer

    Add Layer Group

    Create Layer

    Delete Layer

    Layer Lock

    Adjustment Layer

    Image Layer

    Mask

    Mask Link

    Opacity

    Fill

    Menu

    Lock: Transparent Pixels Pixels Movement Lock All

    Blend Modes

    Layer Visibility

    switch

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    Lightroom Application developed specifically for photographers

    Photoshop is for graphic artist, photographer, prepress, architect, medical imager, 3D artist, videographer

    Combination of Image database and image processor

    Will it replace Photoshop? No, Photoshop will continue to grow.

    How does it differ from Photoshop, Bridge, Adobe Camera Raw (ACR)? Bridge is a Browser; LR is a database

    PS is a pixel editor; LR is a RAW or JPEG converter

    LR processes images but doesnt have as large a tool set for modifying images as PS does

    PS and LR use the same Adobe Camera Raw engine.

    LR has good connectivity to/from Photoshop

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    Lightroom Overview 70,000 images and growing

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    Lightroom Develop Module Histogram

    Tool Bar: Cropping Tool Spot Remover Red Eye Tool Graduated Filter Adjustment Brush Adjustment Pallets Basic Tone Curve HSL/Color/Grayscale Split Toning Detail Vignettes Camera Calibration

    Film Strip

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    RAW versus JPEG (RAW has much greater Latitude in Post Processing than JPEG)

    Photo Lab

    Darkroom PhotoShop

    With JPEG the Photo Lab is in the Camera. White Point is

    set inside the Camera.

    With RAW You are getting 100% of the unprocessed raw data that

    the Camera can produce

    The Photographer is in full control of the process Print

    Film Camera Digital Camera

    JPEG Advantages

    Smaller File sizes Can shoot faster (Good for Action Photography Great for snapshots

    Disadvantages Only 8 bit pixel depth Must manage processing in Camera at time of shot (Exposure, Tone Curve, White Balance) Some of the RAW image data is lost as image is processed, therefore you do not have a negative master of your image.

    RAW Advantages

    Give 100% of image data Camera has captured 16 bit pixel depth Processing can take place in Photoshop or other image software. This processing offers after image choices as to how the image will look Can correct some photographer errors such as poor exposure Great for Artistic types (Ansel Adams would have loved it)

    Disadvantages Must Process in Photoshop/other image software Large File Sizes You paid a lot of money for that image processor that is built into your camera

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    PhotoShop Workflow Photoshop Color Setup

    Obtaining an Image (Camera or Scanning input)

    Examine Image. Determine Image needs and Photographers intent

    Tonal Correction (Global, Local, Highlights, Shadows, Exposure Correction)

    Color correction (Global color cast, Local colors, skin tones)

    Retouch (Spotting, Noise, Burning & Dodging, Cloning, Blurring, Sharpening), Intent is to direct viewers eye toward Photographers intended object.

    Image sizing and resample

    Image Sharpening (Unsharp Mask, Smart sharpen, sharpening Tool)

    Soft Proof (Selecting Profile, Output Intent, Out of Gamut)

    Final Print

  • Photoshop Elements

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  • Edit Full

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    Tool Box

    Tool Box

    Options

    Project Bin

    Pallet Panel

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    Layer Pallet

    Ctrl + O fills page

    + and key zoom

    Space Bar brings up Hand Tool

    Tab key removes pallets

    Layers Menu

    Opacity Slider

    Adjustment Layers

    Duplicate Layer

    Background layer (locked - Alt double click unlocks)

    Double click on name to rename layer

    Eye Icon turns layer on & off

    Layer Blend Modes

    New Fill or Adjustment Link Lock Lock Delete Layer Layer Layers Transparent All Layer

    Adjustment Layers

    Image Size

    Levels Adjustment Layer

    Mask

    Move Tool (V) Zoom Tool (Z) Hand Tool (H)

    Eye Dropper Tool (I) Elliptical Marquee Tool (M)

    Lasso Tool (L) Magic Wand Tool (W) Quick Selection Tool (A)

    Horizontal Type Tool (T) Crop Tool (C)

    Cookie Cutter Tool (Q) Straighten Tool (P)

    Red Eye Removal Tool (Y) Spot Healing Brush Tool (J)

    Clone Stamp Tool (S) Eraser Tool (E) Brush Tool (B)

    Detail Smart Brush Tool (F) Paint Bucket Tool (K)

    Gradient Tool (G) Custom shape Tool (U)

    Blur Tool (R) Sponge Tool (O)

    Switch Foreground & Background Colors (X)

    Histogram Pallet

    History Pallet

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    Layer Blend Modes

    Darken Blend Modes

    Neutral color - Black

    Lighten Blend Modes

    Neutral color - White

    Contrast Blend Modes

    Neutral color 50% Gray

    Compare Blend Modes

    Dissolve Paints each pixel as a random replacement with base or blend color. Darken - displays either the bottom or top color which ever is darker. Multiply - increases density by about one stop. Over Exposed? Think Multiply. Color Burn darkens the bottom color to reflect the top color. Linear Burn Darkens base color to reflect blend color. White blend is no change Lighten - displays either the bottom or top color which ever is Lighter Screen - decreases density by about one stop. Under Exposed? Think Screen. Color Dodge brightens base color to reflect blend color by decreasing contrast. Linear Dodge brightens base color to reflect blend color by increasing brightness. Hard Light, Overlay, and Soft Light lighten the lights and darken the darks, and all three are useful to boost image contrast. Hard Light the most and Soft Light the least. Soft Light is particularly useful for Burn & Dodge layer. Overlay very useful in painting and touching up masks. Vivid Light Burns or Dodges colors by increasing/decreasing contrast. Linear Light Burns or Dodges colors by increasing/decreasing brightness. Pin Light Replaces the colors depending on the blend color. Hard Mix Gives a posterized effect depending on the fill opacity of the layers. Difference Subtracts blend/base colors depending on which has greater brightness. Excellent for registering images, e.g. stitching panoramas. Exclusion Similar to Difference but less contrast. Hue Luminance and saturation of base color and hue of blend color. Saturation Luminance and hue of base color and saturation of blend color. Color Luminance of base color and hue and saturation of blend color. Luminosity Hue and saturation of base color and luminance of blend color.

    Layers do not have to be images. Could be adjustment layers

    Blends can be applied by blending two layers different or by blinding an image with a painting or editing tool. Base Color is the original color in the image. The Blend color is the color being applied with the painting or editing tool. The result color is the color resulting from the blend.

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    Layer Blend Modes (Cont.)

    Original underexposed

    image

    Screen blend mode, lightens image. Each layer is about 1 f stop

    Original overexposed

    image

    Multiply blend mode, darkens image. Each layer is about 1 f stop

    (Opacity Slider can give graduated f stop)

    Note: Blended layer doesnt have to be a duplicate layer. Can use a Levels or curve adjustment layer.

  • Layer Blend Modes - Screen

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    When Under Exposed, Think Screen Blend Mode (2 stops)

    Darken Blend Modes

    Lighten Blend Modes

    Contrast Blend Modes

    Compare Blend Modes

  • Layer Blend Modes - Multiply

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    When Over Exposed, Think Multiply Blend Mode (1/2 stop)

    Darken Blend Modes

    Lighten Blend Modes

    Contrast Blend Modes

    Compare Blend Modes

  • JKM 9/8/2013 Enhanced Images 21

    Photoshop Elements Workflow Photoshop Color Setup

    Obtaining an Image (Camera or Scanning input)

    Examine Image. Determine Image needs and Photographers intent

    Tonal Correction (Global, Local, Highlights, Shadows, Exposure Correction)

    Color correction (Global color cast, Local colors, skin tones)

    Retouch (Spotting, Noise, Burning & Dodging, Cloning, Blurring, Sharpening), Intent is to direct viewers eye toward Photographers intended object.

    Image sizing and resample

    Image Sharpening (Unsharp Mask, Smart sharpen, sharpening Tool)

    Final Print

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    Photoshop Workflow

    Photoshop Color Setup Use Adobe RGB (1998) or ColorMatch RGB. Dont use Adobe default sRGB. Pro Photo RGB is large Gamut (OK if you know what you are doing)

    Acquisition - Obtaining an Image (Camera or Scanning input) Camera Use RAW format if possible. Photoshop CS2 Camera RAW and Bridge are excellent for workflow. Scanner use highest resolution & bit density scanner can capture, realizing the higher the resolution the more memory space it takes. Convert image to working space. Recommend Adobe RGB 1998

    Tonal correction (Levels, Highlights, shadows, Gamma, Contrast, Curves) Examine histogram Use threshold adjustment to find white point and black point Do not use specular highlights (reflections, glare) as white point. Use brightest color neutral point with texture. Set color sampler reference points for white point, black point, and neutral (mid gray tone). Monitor points as you make changes so you dont lose highlights, shadows, or introduce color casts Use duplicate layer with Multiply blend mode for overexposed images; screen blend mode for underexposure. Shadows and Highlights adjustment in Photoshop CS is excellent

    Color correction (Hue, Saturation, Color Balance) Use Hue/Saturation adjustment layer for major color correction; Color Balance for fine tuning. Use Selective Color adjustment layer for global color, white, black, neutral adjustment (monitor reference points) Most images require increased saturation, but dont saturate to the point it doesnt look natural.

    Retouch (Healing, Cloning Tools) Use separate adjustment layer for cloning. Select Use all layers for clone sample New Healing brush in Photoshop CS2 is excellent

    Burning & Dodging Use separate 50% Gray Fill layer for Burning and Dodging. Set blend mode to Soft Light. And Paint with soft brush at low opacity (10-15%). Use black paint for

    burning and white paint for dodging. Image sizing and resample

    Select Image size you want as output (larger than final crop size) Set resample or set specific output resolution you want. Resize image. Crop Image to size you want.

    Image Sharpening (Unsharp Mask, sharpening Tool) Merge all layers into one (Select new adjustment layer and Alt-Merge visible) Sharpen image. Use Unsharp mask or high pass filter to sharpen edges Nik sharpener Pro is excellent; Smart Sharpen in Photoshop CS2 is outstanding (removes image or motion blur).

    Soft Proof (Output intent, Out of Gamut) Use View-Proof setup to select Print profile. Select Proof Colors Turn on Gamut Warning to view out of gamut (non printable) color warning

    Final Print

  • Examine the Image Look at the histogram Look at the photo Add a transparent layer and mark up

    what needs to be done to it What is your intended use of the

    image What size & resolution (Web is low

    resolution; Print is high resolution)

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  • Toning the Image Set the Black & White Points to maximize

    dynamic range of the image

    Adjust Global Exposure

    Highlights & shadows

    Make Local Selections to tone Local

    Burn (Make darker) and Dodge (Make Lighter) to attract viewers eyes

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  • Set Black & White Point

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    Levels Adjustment

    Layer

    Black Point Dropper White Point Dropper Gray Point Dropper

  • After Black Point & White Point set

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  • Shadows & Highlights

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  • Color Correction Sample with the Eye

    Dropper tool indicates insufficient blue in white wall

    The opposite of blue is Yellow

    This image has a yellow color cast

    Cast is due to shooting photo indoors without flash, i.e. tungsten lighting

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  • Color Correction

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    Adjust Color provides several methods of Correcting Color

  • Color Correction

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    Remove Color Cast has eliminated the color cast from the white wall.

    We still could have a color cast in the shadows or in the mid tones.

  • Replace Color

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  • JKM 9/8/2013 Enhanced Images 32

    Photo Filter Adjustments

    Photo Filters Available in Menu

    Can also add any color using Color Picker

  • Adobe Camera Raw Elements

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  • Adobe Camera Raw Crop Tool

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  • Masks

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    Selection

    Adjustment LayerMask Mask is selected

  • Clipping Mask Photoshop Elements does not support Layer

    Masks except on Adjustment Layers

    It does support Clipping Layers

    Open an adjustment layer (which has a Mask)

    Place it under layer for which you want a Mask, and select layer

    Select Layer -> Create Clipping Mask

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    Clipping Mask

    Layer which is clipped (notice indented icon)

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    Local Changes Mask demo (Photoshop Only)

    Click on Mask to enable the Mask

    Alt Click on Mask to Display the mask

    White Reveals;

    Black Conceals

    Activate the Impact layer by clicking on the eye icon. Reposition the Impact layer with the move tool.

    Digital Photography Post ProcessingWhat we will coverProcessing softwarePhotoshopBridge an organizer for Photoshop and other Adobe ApplicationsPhotoshop CS5Photoshop CS5 ToolsLayersLightroomLightroom Overview 70,000 images and growingLightroom Develop ModuleSlide Number 12PhotoShop WorkflowPhotoshop ElementsEdit FullSlide Number 16Layer Blend ModesSlide Number 18Layer Blend Modes - ScreenLayer Blend Modes - MultiplyPhotoshop Elements WorkflowPhotoshop WorkflowExamine the ImageToning the ImageSet Black & White PointAfter Black Point & White Point setShadows & HighlightsColor CorrectionColor CorrectionColor CorrectionReplace ColorSlide Number 32Adobe Camera RawElementsAdobe Camera Raw Crop ToolMasksClipping MaskSlide Number 37