topic Mosaic dataset looks washed out in Data Management Questions

Mosaic dataset looks washed out

CurtWalker — Thu, 18 Aug 2011 11:04:44 GMT

After creating a Mosaic Dataset using true-color SID tiles I'm getting a totally different look to the aerial than the original SID images. Below an original SID image is centered with the Mosaic Dataset surrounding it.

For this Mosaic Dataset I built pyramids and overviews but did not calculate statistics. Is there a way to tell it to adopt the same color balancing as the originals?

Re: Mosaic dataset looks washed out

TimothyHales — Thu, 18 Aug 2011 12:57:18 GMT

It looks like your Mosaic Dataset is using a stretched renderer. Try changing the stretch type to none for the image. Here is a great blog that discusses this issue: Is your raster so bright, you have to wear shades?

As for color matching, you can use the Color Balance Mosaic Dataset (Data Management) tool from ArcToolbox or the Color Correct window.

Here is also an exercise that will take you through the process using the tool: Exercise 5: Color balancing a mosaic dataset

Re: Mosaic dataset looks washed out

GordonSumerling — Sun, 21 Aug 2011 22:16:57 GMT

G'day Curt,

Usually this is an option in ArcMAP. Go to Customize->ArcMap Options. Select the Raster tab then the Raster Layer tab. Set the Stretch Type to None.

Now open a new ArcMap Document and then add your mosiac. You should fins the stetch is back to normal.

Cheers
Gordon