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Photos are images from photography, starting with 1826. Photons are usually collected by photosensitive paper, and the principle of light phase formation is to produce still images on radiation-sensitive materials such as photosensitive film, paper, glass or metal through the chemical action of light. Most photos are taken by cameras, both positive and negative. The first photo was created by the French inventor Joseph Nicéphore Niépce in 1826. 184 1 year, William Henry Fox Talbot, an Englishman (1800- 1877) published "Carlo Photography", which made a negative that could be copied many times, laying a foundation for the photography process of modern photography. In China, photography was introduced to China by western missionaries in the Qing Dynasty. In the early years of the Republic of China, many businesses with this industry began to rise. The oldest photo in Japan is Koichi Tanaka, which was taken in 1854, and the photography technology was officially introduced to Japan in 1905. Taiwan Province Province introduced photography technology during the Japanese occupation period, so it followed the Japanese translation of title photos. In the streets and alleys, shops that take this as their profession are called photo studios. However, after the 1950 s, the Kuomintang moved to Taiwan Province and changed its name to photography, photo studio and photo studio. It was not until the 1980' s that the Japanese entertainment circle opened, and the word "photo studio" flourished again. /kloc-in the 1990s, the original negative and camera photography technology was gradually replaced by digital electronic technology.

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After centuries of development in chemistry and optics, the invention of pinhole camera provided a good opportunity for the appearance of the first photo in the world. 1826, the French scientist Joseph Nicéphore Niépce took the world's first picture in his home, entitled "Scenery outside the window of Legolas". This photo shows the courtyard and outhouse outside the window upstairs of his house. The shooting method is exposed on the asphalt metal plate in the pinhole camera. A photograph of a person or thing made by exposing photosensitive paper to a photographic negative and then developing and fixing it. Nowadays, in the information age, many photos are preserved in digital form, and digital cameras are developing at a high speed, while traditional cameras using film are gradually decreasing. First of all, from the content and theme, what is in the picture, what is shown from that perspective, which reflects the author's thoughts and what the society at that time is (in short, it will rise to a very high level), then from the grasp of the use of light and shadow in the photo itself, it explains his problems in composition, such as light and shade, contrast, foil, the position and distance of the theme scene in the picture, and finally explains whether his photography skills are snapshots.

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Common photo specifications (pieces) cm 1 inch 2.5*3.5 ID photo 3.3*2.2 390*260 Old photo

[2] 2 inch 3.5*5.3 (less than 2 inch 3.3*4.8) 5 inch 8.9* 12.7 6 inch1.4 *15.2 (&10.2 *15. 20.3 10 inch 20.3*25.4 12 inch 30.5 * 20.3 30.5 * 22.5 30.5 * 25.514 inch 35.6*30.5 15 inch 38./kloc-

24 inch 50*60 30 inch 60*75 36 inch 60*90 75*90 40 inch 75* 100 48 inch 90* 120 60 inch 100* 150 72 inch10.

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Usually, the size of a photo is expressed by "inch", which is different from the diagonal length of products such as monitors.

[3] "A few inches" refers to the length of one side of a photo in inches. For example, a 6-inch photo is a 6×4-inch photo. There is also a commonly used method to indicate the size of a photo in the world, which is to take the integer value of the short side of the photo and add the letter R to indicate it. For example, a 6-inch photo, the specification is 6×4 inches, which is 4R. In addition, regardless of the number of pixels of a digital film, we only look at the number of pixels on the long side. 1200 is 5 inches, 1400 is 6 inches, 1700 is 7 inches, and so on ... 1 inch =2.54cm. For example, 5 inches is the photo length of 2.54×5 = 12.7cm 12 inches is 2.54× 12 = 30.5cm, and 8x 12 is the long side of 2.54×12 = 30.5cm.. 5R is 127MM. Usually 3R means 3*5, that is, 5*7, that is, 7 inches r, that is, a rectangle. All the photos taken by 135 machine are developed into 3R, 4R or 5R or above. If the 6X7 bottom of the 120 machine is developed into 3R photos, it is not ". The scale is "3 inches X 3.5 inches", which is a 3R photo, and there are still 3 inches that must be enough. It's also like the photo at the bottom of 120 Hasselblad 6X6, because its negative is square. If you want to take a square photo, such as "3 inches× 3 inches" and "5 inches× 5 inches", old photos,

[4] In this case, we don't call it 3R, we call it 3S or 5S, and S stands for Square. The proportion of photos taken by digital cameras is generally 4: 3 (consistent with the proportion of our monitors), while the proportion of enlarged photos is generally about 3: 2 (consistent with the length and width ratio of film negatives). Therefore, the scale of photos taken by digital cameras should be cut to 3: 0. If you don't want to cut the photo, or the content is too full to cut, you have to leave a little white margin on the left and right when you enlarge the print. For example, your photo is 1600* 1200, which is a ratio of 4: 3, while a 6-inch photo is 15.2* 10.2, which is a ratio of 3: 2. If your photos are not cropped, 4: 3 photos can only be placed on 3: 2 photo paper, with a little white margin on each side of the photo. It's like adding white boxes on both sides (instead of the top or bottom). If you don't want to leave a blank space, you can cut off some of the top or bottom of the photo to make it1600 *1074 (1600/15.2 *10.2 =1074). The specification of 8-inch photos is 6*8( 15.2*20.3cm), and the ratio is 4: 3, so it is unnecessary to cut most digital photos. Hong Kong and Macao Pass 33mm×48mm Visa to the United States 50mm×50mm Japanese Visa 45mm×45mm Passport 33mm×48mm graduation photo ID Card 26mm×32mm Driver's License 22mm×32mm Car photo 60mm×9 1mm Photo size and printing ruler. Inch contrast (resolution: 300dpi) Photo size (inch) Print size (cm)10x1525.4x38.10x12x25.4x30.58x1020.3x25.4 5x 8 12.7 x 20.3 5x 7 12.7 x 17.7 4x 6 10. 1x 15.2 3.5x 5 8.9x 12.7

The origin of editing this news photo

The development and competition of newspaper industry has become the most important driving force to promote newspaper innovation, and illustrations are naturally indispensable. News photos in newspapers and magazines, photos of classmates.

[5] What is the calendar like? Here's a little story. News pictures have become an indispensable part of newspapers, but in the early days of the development of journalism, there were no news pictures. Until 1835, an American named Karat published his first news photo in the newspaper, which was about the fire in the New York Mercantile Exchange. At that time, because the newspaper printing equipment was very backward, the pictures published were very vague, so it was difficult to tell what was on the pictures. 1844, an American who printed pictures, Gurrell used lithography technology to print pictures. But pictures and newspapers were sold separately, and many people bought them at that time. Since then, newspapers have printed photos with silver plate method, and the effect is much clearer than before. Risley Pictorial and Harper's Weekly, founded in 1855 and 1857 respectively, published linear news pictures. It was not until1March, 880 14 that the first photo of the copperplate appeared in newspapers, which was a great progress. New york World, founded by Pulitzer, published woodcut news pictures, which greatly increased the circulation of newspapers. It was not until the 1980s that news pictures became part of the newspaper itself. Wonderful Atlas (1)

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Adobe series

In terms of image processing, Adobe series software covers almost all the image processing effects that can be thought of at present. However, due to its professional orientation and powerful functions, Adobe series software is also very difficult to operate. For professional users, various complex effects can be achieved through their own professional skills, but the implementation process is also quite difficult. For non-professional users, only the most basic functions of the software can be used, and the effect that can be achieved is of course extremely simple. 1, Adobe Photoshop CS4 is aimed at groups: professional photographers, graphic designers, and web designers make full use of unparalleled editing and composition functions to provide a more intuitive user experience and greatly improve work efficiency. 2, Adobe Photoshop Lightroom 2 is suitable for groups: professional photographers use Adobe Photoshop Lightroom? Master the software of digital photography workflow. Import, manage and display a large number of photos or modify a single image.

Significance of production

With the advent of the digital age, digital cameras make it easier for people to watch photos before they are developed, not just after they are developed, but also to process digital photos and edit their favorite photo effects on the computer. The photos taken by digital camera can be directly saved on the computer, which realizes the lossless preservation of photos and is not limited by time. It avoids the yellowing of photos taken by traditional cameras after long-term development, and can also be repaired and beautified by software on the computer. Photo processing software is a kind of software for repairing and beautifying digital photos. This kind of software is not only used for professional purposes, but also for home entertainment, so that not only professionals can process photos, but also ordinary home users can process photos. The most important significance of the birth of photo processing software is to break the monopoly of professional graphic image processing software in this field and make photo processing popular among home users.

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definition

Photo processing software is a kind of software for analyzing, repairing, beautifying and synthesizing digital photos. In the field of graphics and image processing, photo processing software belongs to a branch of image processing software, which works specifically for digital photos. Photo analysis refers to converting a natural image into a digital form suitable for computer processing through sampling and quantization, including the display of Exif information, histogram, gray image and so on. , and photo repair. It refers to improving the quality of photos through image enhancement or restoration, including removing noise, correcting wide-angle distortion of digital photos, improving image contrast, eliminating red eye and repairing purple edge. And photo composition refers to the process of combining multiple photos to realize the change of photo content.

App application

With the popularity of card digital cameras, digital photos have become a medium for more and more ordinary families to store memories. However, in the process of taking digital photos, the demand for repairing or post-processing digital photos is increasing, and photo processing software is the product of this era. At present, the application of photo processing software mainly lies in the restoration and enhancement of digital photos. The restoration and enhancement of digital photos refers to the deviation of photos caused by shooting conditions, camera itself or shooting methods. For example, due to the influence of backlight or strong light, a purple edge will appear at the junction of dark and bright parts of the photographed photos, which is usually called "purple edge" in photography. For example, when you shoot with a flash, you accidentally shoot the capillaries of people's or animals' eyes, which leads to red eyes in the photos. Photography is often called "red eye". For example, due to the influence of ambient light, white objects appear non-white, and our naked eyes can judge the original color according to the ambient light, but digital cameras can't, resulting in inaccurate white balance of the photos taken. The repair and enhancement of photo processing software refers to the handling of these shooting accidents.