To finish the three auto commands i zoomed on in each one then selected its layer then went up to the image menu and selected its name for each one.
ill start by making sure the first layer is selected and go to the image menu and select the auto tone command. Ill do th e same with auto contrast and auto color. to do auto b/cgo to the image menu select adjustments command then on the pop up select auto then ok. For the double auto i will go to the image window select auto contrast then go back to the image menu the select adjustments command an then select brightness/contrast,again you will select auto on the pop up and select ok. (images are in order as said in paragraph)
ill now switch to the turtle image.ill start out by going to the image menu and selecting the auto tone command. then i will visit the image menu you one more time and select adjustment then brightness/contrast. again ill select the the auto button on the pop up then select okay and you can see the image is better. and the difference.
for custom Brightness and contrast ill start by opening the image and the ill go to the image menu select adjustment and then brightness and contrast. then ill select auto on the pop up box i changed the brightness to 50 and the contrast to 100.
you can use the little black and white circle at the bottom of the screen to get to the brightness and contrast or you may go to the windows minuend select the adjustments command to open the adjustments menu.ill change the brightness to -60 and the contrast to a 70.
ill start becoming the first image and changing the brightness and contrast ill then change the image to overlay which is commonly used most for what it does. use the shortcut shift + return to select the brightness number dos and also use the up or dow arrow keys to change the number of brightness you would like.