Current location - Loan Platform Complete Network - Big data management - How does thresholding work
How does thresholding work
Question 1: What is the purpose of thresholding in ps? How to use threshold? Thresholding is the maximum control value of the color scale, its role is used to control the current image of the brightness and darkness of the degree of contrast, and will remove all the color information in the image, leaving only black and white, the use of thresholding can be extracted from the current image of the highlights and dark parts. This can be performed in two ways: one is to utilize the Adjustment command in the Image menu to start directly, and the other is to add an adjustment layer to add.

Question 2: What is the role of thresholding in PS, what can be done with it Every color in nature has a value, usually by the RGB (i.e., red, green, and blue primary colors) in proportion to the mixing will get a variety of different colors. Thresholding an image is a method of applying special treatment to colors. In detail, the threshold is a conversion threshold, no matter what kind of color your picture is, it will eventually treat the picture as a black and white picture, that is to say, after you set a threshold, it will use this value as a criterion, and any color larger than the value will be converted to white, and any color lower than the value will be converted to black, so the final result is that you get a black and white picture. The role of thresholding: of course, it is to get a black and white picture with different contrast. How and for what? For example: you can open a picture, create a few new layers, use the threshold to change these layers, to get different black and white pictures, and then use these pictures, through the different modes of layer blending and change the transparency of the different, the essence of the last is to get a different effect of the picture you can also use a variety of filters to deal with the black and white picture, and then through the mixing of the layer to add to the other picture, to get a variety of effects. In fact, this is to try their own constantly under the many effects are constantly trying to come well, people do well, you have been following the imitation even if the imitation is good, but not as good as their own learning to create things.

Question 3: What is the role of the threshold in PS, you can use it to do what Every color in nature has a value, usually by the RGB (i.e., red, green, and blue primary colors) in proportion to the mixing of a variety of different colors.

Thresholding an image is a way of doing something special with colors.

In detail, the threshold is a conversion threshold, no matter what kind of color your picture is, it will eventually treat the picture as a black and white picture, that is to say, after you set a threshold, it will be used as a criterion, all the colors that are larger than the value will be converted to white, and the colors that are lower than the value will be converted to black, so the final result is that you get a black and white picture.

The effect of thresholding: of course, you get a black and white picture with different contrast.

How and for what?

For example: you can open a picture, create a few new layers, change the layers with thresholding, get different black and white pictures, and then use these pictures to get different modes of layer blending and change the transparency of the layers

The essence of the last is to get a different effect of the picture

There are also a variety of filters that you can use first to deal with these black and white pictures, and then add to the other layers through the layer blending.

You can also use various filters on these black and white images, and then add them to other images through layer blending to get various effects.

This is in fact to continue to try their own, many of the effects are constantly trying to come well, people do well, you have been following the imitation even if the imitation of the best, but also less than their own learning to create things.

Question 4: When can the threshold funds be used If you commissioned to buy the stock today, the commission will be temporarily frozen, so that the commission's transaction, you can withdraw the order before the transaction; if the transaction has been completed, the funds are frozen to the close of the market after the settlement of funds.

Question 5: Where is the PS threshold? What is the use of it? How to set? hand-typed, I hope you help, hope to adopt ... open PS ... image ... adjust ... threshold, you can convert the color image to a black and white image. This command allows the user to specify a threshold value, during the conversion process *** the pixels in the working image that are higher than this threshold will be converted to white, and all pixels that are lower than the threshold will be converted to black.

Question 6: What is thresholding in PS? What is the role of the best to give an example, thank you. The "Threshold" command converts a grayscale or color image to a high-contrast black and white image. A certain color scale can be specified as the threshold. All pixels brighter than the threshold are converted to white; and all pixels darker than the threshold are converted to black.

For example, if you scan a grayscale image with a scanner, after thresholding it and moving the threshold point, the image above the threshold you set becomes all white, and below it is all black, turning it into a binary image.

Question 7: The canny algorithm has two thresholds, what are they for? The first is a low threshold, the second is a high threshold

The high threshold is more strict, and seeks very few edges, and considers the edges of the high threshold to be valid. The low threshold is loose, and asks for many edges (generally including the edges that the high threshold asks for), many of which are invalid edges (the ones you don't want anyway).

Start with the high thresholded edges. canny gets edges that are hopefully connected (usually closed), but high thresholded edges are generally disconnected. If a low-threshold edge exists in a disconnected area, the low-threshold edge is used to join it, in order to keep the edges together as much as possible. In other cases, low-threshold edges are not used.

There is a difference between the two thresholds, the high threshold is to extract the contour of the object to distinguish from the background, just like the threshold segmentation of the parameter, is to determine the target and background contrast, the low threshold is used to smooth the edge of the contour, and sometimes the high threshold is set too large, the edge of the contour may be discontinuous or not smooth enough, through the low threshold to smooth out the contour line, or make the discontinuous part of the connection

The low threshold to smooth the contour line, or the low threshold to make the edge as close as possible to the edge.

Question 8: What is the 3dmax2012 threshold? What does it do? In my personal understanding, the threshold is somewhat like the boundary of a parameter. Within this threshold, you can realize the requirements of the parameter, and above this threshold, you can skip the parameter.

In the case of the smoothing modifier, it works by smoothing neighboring surfaces within a certain angle (or ID, which is beyond the scope of this discussion). When auto-smoothing is checked, the threshold value is 30, which means that if the angle between two faces is 30 degrees or less, max will smooth them out by default. If the angle between the two surfaces is less than 30 degrees, max will smooth it out by default. If it is greater than 30, max will not be able to set smoothing for it

I'm speaking from my own understanding, just for reference only

Question 9: How do you set up the various thresholds on your router? Log in to the configuration interface of your wireless router, and look for the "Wireless Settings-Wireless Advanced Settings"!

DTIM Threshold: DTIM is the countdown time for sending broadcast and multicast data, this value seems to be of little use to ordinary users, just keep the default.

Segmentation Threshold: This value indicates the length of the maximum packet received, when the wireless router receives more packets than the value set here, it will re-segment the packets, since too much segmentation will greatly reduce the performance of the wireless router, so don't set the value here too low, keep the default.