How do I unhide hidden layers in Photoshop?
In the Layers panel, just click on the little Eye icon to the left of the layer's thumbnail and it hides that layer from view. To see it again, click where the Eye icon used to be. To see just one particular layer (and hide all the rest), press-and-hold the Option (PC: Alt) key, and then click on the layer's Eye icon.
Hold down "Alt" (Win) / "Option" (Mac) and click on the Layer Visibility icon to temporarily hide all the other layers. To turn all the layers back on again, hold down Alt (Win) / Option (Mac) and click again on the same Layer Visibility icon.
Click the eye icon next to a layer to toggle the visibility on or off. You can also click-and-drag up or down on multiple eye icons to toggle the visibility of multiple layers.
You can delete all hidden layers (Eye icon off), by going into the Layer panel's flyout menu (4 line icon on the top right of Layer's panel) and choosing “Delete Hidden Layers“.
- Open File Explorer from the taskbar.
- Select View > Options > Change folder and search options.
- Select the View tab and, in Advanced settings, select Show hidden files, folders, and drives and OK.
Toggling Layer Visibility in Photoshop
Command + Option + “,” (comma) (Mac) | Control + Alt + “,” (comma) (Win) shows all layers (regardless of which layers are selected).
Hidden layers and neurons
They allow you to model complex data thanks to their nodes/neurons. They are “hidden” because the true values of their nodes are unknown in the training dataset. In fact, we only know the input and output. Each neural network has at least one hidden layer.
| Shortcut Key | Task |
|---|---|
| Ctrl + M | To open the curves dialog box |
| + | To select the next point on the curve. |
| - | To select the previous point on the curve |
| Ctrl + D | To deselect a point |
You have to be in Expert mode, not Quick mode. Once there, you will see the layers panel toggle at the bottom right of the screen. There is also a toggle in the "Window" menu for Layers. Or you can use the keyboard shortcut F11 (on a Windows machine).
Since Photoshop's interface is so customizable, it's very easy to accidentally close or misplace an important panel like the Layers Panel. If you can't see it, all you have to do is go to the Window menu. All the panels that you currently have on display are marked with a tick. To reveal the Layers Panel, click Layers.
How do I find missing layers in Photoshop?
Let's say that your layers panel vanished from the workspace. You can get it back by going up to the menu bar and clicking on the Window menu. Then, find the desired panel in the list, and click it. In this case, that panel is Layers.
PRO TIP: If you are working in Photoshop and your layers seem to be hidden, it is likely that you have accidentally turned on the 'Lock All Layers' option. This option can be found in the 'Layers' menu at the top of the screen.
- Hover over the layer, group or Frame in the Layers panel.
- Click on the visibility icon to toggle the layer's visibility off.
- The eye will close and the layer will be hidden in the canvas. It will also appear as inactive (greyed out) in the Layers panel.
- Click to toggle the layer's visibility on again.
Drag the layer or layers up or down the Layers panel to the new position. Choose Layer > Arrange, and then choose Bring To Front, Bring Forward, Send Backward, or Send To Back.
How do I unlock a layer? If your layer is locked or partially locked, click the small lock icon to the right of the layer name to unlock it. To lock a layer, select it and click the lock icon above your stack of layers in the Layers panel.
Type in “bb.showhiddenobjects” and press enter.
The default Android Files app can show hidden files. If you're looking for files on Android, then the built-in Files app is the obvious place to go: It helpfully splits files up into categories (including downloads and images, for example), so you can find what you're after more easily.
| Result | Windows |
|---|---|
| Show/hide all other currently visible layers | Alt-click the eye icon |
| Toggle lock transparency for target layer, or last applied lock | / (forward slash) |
| Select all text; temporarily select Type tool | Double-click text layer thumbnail |
If you have too many hidden units, you may get low training error but still have high generalization error due to overfitting and high variance. (overfitting - A network that is not sufficiently complex can fail to detect fully the signal in a complicated data set, leading to underfitting.
Better proportionality of neurons with appropriate number of hidden layers result in higher accuracy. In general, in any neural network at most two hidden layers are enough to train the network. But in some cases where accuracy is chief criteria then hidden layer plays vital role.
How many hidden layers are there?
Choosing Hidden Layers
If data is less complex and is having fewer dimensions or features then neural networks with 1 to 2 hidden layers would work. If data is having large dimensions or features then to get an optimum solution, 3 to 5 hidden layers can be used.
Photoshop Keyboard Shortcuts for Layers
⌘/Ctrl + Shift + G Ungroups layers. Alt/Option-click on the eye icon of a layer to hide all other layers than this one. Alt/Option -click between 2 layers to create a clipping mask between the 2 layers.
Pressing < Command + Shift + J with a selection creates a new layer while cutting the data from the original layer. Holding Option while pressing one of the arrow keys allows you to duplicate the current layer and nudge it by 1 pixel.
| macOS | Windows | |
|---|---|---|
| Undo | Command Z | Ctrl Z |
| Step Back | Command Option Z | Ctrl Alt Z |
| Duplicate | Command J | Ctrl J |
| Duplicate all visible Layers | Command Shift Option E | Ctrl Shift Alt E |
View and manage layers
In Acrobat Pro, locked layer visibility can be changed using the Layer Properties dialog box. If the icon isn't visible, go to > View > Show/Hide > Side panels > Layers.
To hide a layer, click the eye icon. When a line appears across the eye icon, the layer is not visible. Click in the eye column again to show the layer.
| Result | Windows | Mac OS |
|---|---|---|
| Open Help | F1 | F1 |
| Show/Hide History panel | F10 | Option + F10 |
| Show/Hide Layers panel | F11 | Option + F11 |
| Show/Hide Navigator panel | F12 | Option + F12 |
Lock or unlock a layer
Select the layer in the Layers panel, and do one of the following: Click the Lock all pixels icon in the Layers panel, to lock all layer properties. Click the icon again to unlock them.
If you've recently merged or flattened your layers, you can simply use the undo command to step backward. Just press Command + Z (Mac) or Control + Z (PC) to undo changes. Alternatively, you can go up to Edit > Undo. Using the keyboard shortcut is ideal for undoing several times quickly.
- Enter LAYDEL on the command line.
- Click 'Name' or enter N.
- Select the Layer and click 'OK' to delete it.
Why does Photoshop say my layer is hidden?
You have a quickmask channel selected, but the visibility is off on that channel. The “Q” key will exit quick mask and return you to RGB Channels.
That message means the selected layer is hidden. If you want to work on a hidden layer then you have to make it visible again. Just tap the grey circle on the left side of the layer. Or in this case when the layer is hidden the circle has only a grey stroke, but becomes solid grey again when tapped.
Since Photoshop's interface is so customizable, it's very easy to accidentally close or misplace an important panel like the Layers Panel. If you can't see it, all you have to do is go to the Window menu. All the panels that you currently have on display are marked with a tick. To reveal the Layers Panel, click Layers.
| Result | Windows | Mac OS |
|---|---|---|
| Open Help | F1 | F1 |
| Show/Hide History panel | F10 | Option + F10 |
| Show/Hide Layers panel | F11 | Option + F11 |
| Show/Hide Navigator panel | F12 | Option + F12 |
Note: to disable this feature, choose Preferences > Workspace and uncheck Auto-Show Hidden Panels. Auto-Collapse Iconic Panels — In the animation below, the Properties panel starts in the collapsed, iconic state.
- Hover over the layer, group or Frame in the Layers panel.
- Click on the visibility icon to toggle the layer's visibility off.
- The eye will close and the layer will be hidden in the canvas. It will also appear as inactive (greyed out) in the Layers panel.
- Click to toggle the layer's visibility on again.
Causes: Layers are frozen in the current layout viewport.
In artificial neural networks, hidden layers are required if and only if the data must be separated non-linearly. Looking at figure 2, it seems that the classes must be non-linearly separated. A single line will not work. As a result, we must use hidden layers in order to get the best decision boundary.
For example, a hidden layer functions that are used to identify human eyes and ears may be used in conjunction with subsequent layers to identify faces in images. While the functions to identify eyes alone are not enough to independently recognize objects, they can function jointly within a neural network.
Choose Edit >Toolbar. In the Customize Toolbar dialog, if you see your missing tool in the Extra Tools list in the right column, drag it to the Toolbar list on the left. Click Done.
