It's likely one of 3 issues:
1. Your Image Mode is set to Grayscale rather than RGB or CMYK.
2. The Layer Channel is set to Green or Blue and not RGB, which can make it seem like it's BW (for Image Mode set to RGB). If it's set to Multichannel, you can get the same problem if only the Alpha 1 channel is set.
3. If the image is a result of a scan, the scanner's setting is likely set to Grayscale and not Color.
First check the image mode - click on Image, Mode, then view the setting. Change it to RGB or CMYK depending on the project you're working on.
Next, check the Channel Palette (Window, Channels) and check that all channels are selected.
If it's not those, then check your scanner and make sure it's set for color output.
To add a layer mask in Photoshop, first select the layer you want to add the mask to. Then, click on the "Add Layer Mask" button at the bottom of the Layers panel. This will create a white layer mask next to your selected layer. You can then use the brush tool to paint on the mask with black to hide parts of the layer, or with white to reveal them.
Layers are pictures stacked one to another, Layers can contain transparent pixels so you can see through Layer above what is on Layer below.
To crop a specific layer in Photoshop, first select the layer you want to crop. Then, use the crop tool to adjust the size and position of the layer. Finally, press Enter to apply the crop to the selected layer.
To crop a single layer in Photoshop, first select the layer you want to crop. Then, use the crop tool to adjust the size and position of the layer. Finally, press Enter to apply the crop.
To crop just one layer in Photoshop, first select the layer you want to crop. Then, use the crop tool to adjust the boundaries of the layer. Finally, press Enter to apply the crop to the selected layer only.
To crop only one layer in Photoshop, first select the layer you want to crop. Then, use the crop tool to adjust the boundaries of the layer. Finally, press Enter to apply the crop to the selected layer only.
First click on layer with pixels you want to warp (layer can not be background layer, must be regular layer), in Photoshop CS5 and newer go to Edit > Puppet Warp or Edit > Transform > Warp.
To change the color of the background layer in Photoshop, first select the background layer in the Layers panel. Then, go to the "Edit" menu, choose "Fill," and select the desired color from the options. Click "OK" to apply the color to the background layer.
To change the background layer color in Photoshop, first select the background layer. Then, go to the "Edit" menu, choose "Fill," and select the color you want for the background. Click "OK" to apply the color change.
To crop only one layer in an image using Photoshop, first select the layer you want to crop. Then, use the crop tool to adjust the boundaries of the selected layer. Finally, press Enter to apply the crop to the selected layer only.
To crop only one layer in Photoshop, first select the layer you want to crop. Then, use the crop tool (shortcut: C) to adjust the cropping area around the selected layer. Finally, press Enter to apply the crop to only that specific layer.
To crop a single layer in Photoshop, first select the layer you want to crop. Then, use the Crop Tool (shortcut: C) to draw a cropping box around the area you want to keep. Press Enter to apply the crop.