COB-ing

Cut Out Background "COB"

Zoom link for all Kulzer's classes: https://zoom.us/j/8490222092

International Society for Technology in Education (ISTE) Standards

  • 1. Empowered Learner -- Students leverage technology to an active role in choosing, achieving and demonstrating competency in their learning goal, informed by the learning sciences.
  • 1a. Students articulate and set personal learning goals, develop strategies leveraging technology to achieve them and reflect on the learning process itself to improve learning outcomes.
  • 1b. Students understand the fundamental concepts of technology operations, demonstrate the ability to choose and use/troubleshoot current technologies.
  • 1c. Student are able to transfer their knowledge to explore emerging technologies.
  • 2. Digital Citizen -- Students recognize the rights, responsibilities and opportunities of living, learning and working in an interconnected digital world, and they act and model in ways that safe, legal and ethical.
  • 2a. Students engage in positive, safe, legal and ethical behavior when using technology, including social interactions online or when using networked devices.
  • 2b. Students demonstrate an understanding of and respect for the rights and obligations of copyright and sharing intellectual property.
  • 3. Knowledge Constructor -- Students critically curate a variety of resources using digital tools to construct knowledge, produce creative artifacts and make meaningful learning experiences for themselves and others.
  • Students plan and employ effective research strategies to locate information and other resources for their intellectual or creative pursuits.
  • 4. Innovative Designer -- Students use a variety of technologies within a design process to identify and solve problems by creating new, useful or imaginative solutions.
  • 4a. Students know and use a deliberate design process for generating ideas, testing theories, creating innovative artifacts or solving problems.
  • 4b. Students select and use digital tools to plan and manage a design process that considers design constraints and calculated risks.
  • 4c. Students develop, test and refine prototypes as part of a cyclical design process.
  • 5. Creative Communicator -- Students communicate clearly and express themselves creatively for a variety of purposes using the platforms, tools, styles, formats and digital media appropriate to their goals.
  • 5a. Students choose the appropriate platforms and tools for meeting the desired objectives of their creation or communication.
  • 5b. Students create original works or responsibly repurpose or remix digital resources into new creations.
    • *All standards listed above are from the SRR Industrial Technology Standards document based on the ISTE standards.
    "COBing" describes the act of Cutting Out the Background (COB) of a photo.

    The easiest way I've found to COB is shown in this video. (Thanks to Natalie J. for teaching me).

    In some instances the background may need to be removed with more precise tools like using the Refine Edge brush as a way of more accurately selecting hair and fur.

    In addition, the teacher demonstrates some of the selection tools in photoshop including the lasso tool, quick select tool, magic wand, and others.

    Quickmask Mode is demonstrated along with the use of a Layer Mask made from a selection and feathering a selection.

    Click here for good and bad COBing examples.



    Students are to use a photo that they have taken and isolate the main subject of the photo by using selection tools in photoshop. Students are to remove the background and save the image as a .PNG with transparency so their image could be placed over another image or in another setting.

    Be sure to crop the image tightly to the visible object.




    Evaluation:
    4 points -- Quality of original photo
    4 points -- Clean natural masking/cutting
    2 points -- Saved as a PNG file with transparency
    10 Points total.

    Anissa Demo Image



    Back to top