Canon PIXMA MX320 On-Screen Manual - Page 521

Adjusting Histogram Images with more data distributed to the highlight side Move the Mid-point Slider toward the highlight side. Images with more data distributed to the shadow side Move the Mid-point Slider toward the shadow side. Page 521 of 817 pages Adjusting Histograms (Using the Droppers) When you select a Channel and click the Black-point, Mid-point or White-point Dropper, the mouse pointer on the preview image changes to a dropper. Click a Dropper displayed below the histogram to change the setting. - The point clicked with to 245). (Black-point Dropper) will be the darkest point. You can also enter a value (0 - The point clicked with a value (5 to 250). (Mid-point Dropper) will be the middle of the tonal range. You can also enter - The point clicked with (10 to 255). (White-point Dropper) will be the brightest point. You can also enter a value - Click for Gray Balance and click the area you want to adjust the color in the preview image. The clicked point will be set as the achromatic color reference, and the rest of the image is adjusted accordingly. For instance, if snow in a photo appears bluish, click the bluish part to adjust the whole image and reproduce natural colors. Page top