graphics-piximperfect/_subsections/chapter06.org
2025-02-23 04:06:09 +02:00

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Notes on Lesson 06 - Selections | PiXimperfect

Notes

selection tool intro

  1. a selection is an area we are targeting
  2. the quick selection tools try to find edges
  3. you can increase or decrease the size of the brush via the ][ keys
  4. select with the brush by painting over what you want

how to make selections

  1. lasso tools

    • marquee tools
    • quick selection tool
    • object selection tool

      • click on the icon
      • choose the mode (rectangle or lasso)
      • circle the object

        /notes/graphics-piximperfect/media/commit/78cdd6ece0a4e0bb58e131a76f16f1ffda689975/_share/media/img/piximperfect/photoshop/lesson-06/E01.png /notes/graphics-piximperfect/media/commit/78cdd6ece0a4e0bb58e131a76f16f1ffda689975/_share/media/img/piximperfect/photoshop/lesson-06/E02.png
  2. pen tool

    • takes a long time
    • precise
    • used in commercial
  3. color
  4. select and mask
  5. adobe AI masking

    • select subject
    • select sky
  6. misc

    • brush tools
    • channels

lasso & polygonal lasso tool

  • select anything with the lasso tool
  • to switch between lasso and polygonal hit ALT

lasso tool

close the selection
  • double click
deselect
  • CMD+D
create a new layer with selection
  • go to layers and select the layer you want
  • hit CMD+J
content aware fill
  • Edit-> Content Aware Fill
fill the area with a color
  • OPT+DELETE

polygonal

deletes last point
  • CMD+DELETE

adding and take away

  • subtract: ALT
  • add: SHIFT
you can also do this using buttons

file:../_share/media/img/piximperfect/photoshop/lesson-06/E03.png

quick selection

  • file:../_share/data/piximperfect/photoshop/lesson06/examples/example-04.psd
  • tries to find the edges of the object
  • all you have to do is just paint over it

    file:../_share/media/img/piximperfect/photoshop/lesson-06/E04.png

sample all layers

  • when checked off it only looks at the currently selected layer
  • when check on, it looks at all layers under the cursor when making a selection

make a mask

just click the mask button in selection

place image on top of another

  1. create a new layer based on the original by dragging the original layer down to the plus button

    • the cursor will change to a hand symbol and you will have to move that over the correct button

    file:../_share/media/img/piximperfect/photoshop/lesson-06/E05.png

  2. click the mask button on the new layer
  3. add an image between the original and the new selected one
  4. pick a different blending mode (ie linear burn) that will affect the background of the original image but not the selected section which you place above
  5. use curves to lighten parts of the image

    • you can limit the curve effect using masks

      1. select the mask icon
      2. click CMD+I
      3. paint the white area you want to use
      4. use a gradient white-black

select sky

exactly what it sounds like

select subject

in the top bar under 'select subject' you can drop down and choose to use adobe's servers

color range