In the Layers palette, select the New Adjustment Layer icon indicated by a black & white circle. From the menu, select Hue/Saturation. Drag the Saturation slider all the way to the left for a setting of -100, then select OK. The image will now be black and white, but if you look at the layers palette you can see that the background layer is still in color, so the original has not been permanently altered. Next, select the eye icon next to the Hue/Saturation adjustment layer to switch off the layer’s effects. (The eye toggles the visibility of an effect.) If your image looks like infrared instead of black and white, you’ve selected the gradient in reverse. Select Reverse under gradient options. Select OK to apply the gradient map. Now select the eye icon on for the Hue/Saturation adjustment layer and use the eye icon on the Gradient Map layer to compare the results of both methods of black and white conversion. The gradient map layer uses two thumbnail icons. The one on the left indicates the type of adjustment layer. The one on the right is the layer mask. The layer mask lets you erase your adjustment by painting on it. White reveals the adjustment, black blocks it completely, and shades of gray partially reveal it. We will reveal the color of the apples from the background layer by painting on the layer mask with black. As you paint, use the bracket keys to increase or decrease the size of your brush.

[ makes the brush smaller] makes the brush largerShift + [ makes the brush softerShift + ] makes the brush harder

When you think you’re done, set your zoom level back to 100 percent. If the colored edges look too harsh, soften them slightly by selecting Filter > Blur > Gaussian Blur and setting a blur radius of 1-2 pixels. Make a duplicate of the background layer by dragging it to the new layer icon on the layers palette. This way we leave the original untouched and can remove the effect simply by deleting the layer. With the background copy selected, select Filter > Noise > Add Noise. Set the amount between 3 percent and 5 percent, then select the checkboxes for Distribution Gaussian and Monochromatic. Compare the difference with and without the noise effect by checking or unchecking the preview box in the Add Noise dialog. If you like it select OK. If not, adjust the noise amount or cancel out of it.