How to Remove Complex Backgrounds in Photoshop with Calculations

TLDRLearn how to remove complex backgrounds in Photoshop using the calculations technique. This method provides better results than the automated sky replacement feature and allows for fine-tuning of the mask. By selecting the channels with the most contrast, you can create an accurate mask that preserves detail. Additional adjustments and brush techniques can be used to enhance the mask further.

Key insights

🖌️The calculations technique in Photoshop provides better results for removing complex backgrounds compared to automated features.

🌉Selecting the channels with the most contrast between the foreground and background improves the accuracy of the mask.

🎨Fine-tune the mask using image adjustments and brush techniques to preserve detail and enhance the overall result.

👉Copying and pasting channels between documents can help recover lost detail and improve the quality of the mask.

⏲️Investing time in manual mask creation yields superior results compared to relying solely on automated features.

Q&A

Why use the calculations technique instead of the sky replacement feature?

—The calculations technique provides more control and allows for better preservation of detail in complex backgrounds.

How do I select the channels with the most contrast?

—In the calculations dialog, examine each channel individually and choose the one that shows the greatest contrast between the foreground and background.

Can I fine-tune the mask after using calculations?

—Yes, you can use image adjustments and brush techniques to further enhance the mask and improve the details.

What if I lose detail during the masking process?

—You can copy and paste channels from the original image to recover lost details and improve the overall quality of the mask.

Is it worth the extra effort to manually create masks?

—Yes, investing time in manual mask creation yields superior results compared to relying solely on automated features. The extra control and precision outweigh the additional effort.

Timestamped Summary

00:00Introducing the topic and the image to be worked on.

01:03Using the automated sky replacement feature and explaining its limitations.

01:39Introducing the calculations technique for better results.

02:35Demonstrating how to choose the channels with the most contrast.

06:59Showing how to create the calculations mask and fine-tune it using adjustments and brushes.

08:52Copying and pasting channels to recover lost detail and improve the mask.

10:30Dealing with fringing and advanced tips on masking.

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