Primerjava kvalitete fotografij zajetih s pametnim telefonom in DSLR fotoaparatom

MUROVEC, MARKO (avtor), Zaletelj, Janez (mentor)

Diplomska naloga predstavlja eksperimentalno primerjavo kakovosti fotografij, zajetih s pametnim telefonom Xiaomi Note 14 Pro+ in digitalnim zrcalnorefleksnim fotoaparatom Canon 1D X Mark III. Namen naloge je ovrednotiti vpliv različnih tehničnih parametrov, kot so velikost senzorja, ločljivost, občutljivost ISO in končna obdelava, na kakovost fotografij. V praktičnem delu so bili zajeti posnetki pri različnih vrednostih ISO, tako dnevni kot nočni, na katerih so bile opravljene meritve šuma z uporabo standardne deviacije v programu Photoshop. Narejena je bila primerjava globinske ostrine, razlik med neobdelanimi RAW posnetki in samodejno procesiranimi posnetki s procesorjem Digic X, ter učinkovitosti različnih algoritmov za odpravljanje šuma, vključno z Luminance in AI Denoise v Adobe Camera RAW. Rezultati so pokazali, da DSLR fotoaparat z velikim senzorjem in RAW zajemom omogoča najvišjo kakovost slike ter največjo kontrolo nad detajli, globinsko ostrino in barvami. Pametni telefon z visoko ločljivostjo in naprednimi algoritmi za obdelavo slike lahko doseže primerljivo čistočo posnetkov pri visokih vrednostih ISO, vendar ustvari nekoliko umetne in nenaravne rezultate. Uporaba različnih algoritmov za odpravo šuma predstavlja kompromis med čistostjo slike in ohranjenimi detajli. Delo pokaže prednosti profesionalnega fotoaparata pri natančni kontroli in obdelavi fotografij ter hkrati prikazuje, kako lahko sodobni pametni telefoni z hitrimi algoritmi za obdelavo slike zadovoljijo vizualne in praktične potrebe pri zajemu fotografij v različnih svetlobnih pogojih.

• Jezik: Slovenski jezik
• Ključne besede: digitalna fotografija, pametni telefon, DSLR, RAW, Digic X, Luminance, AI Denoise
• Vrsta gradiva: Diplomsko delo/naloga
• Organizacija: FE - Fakulteta za elektrotehniko
• Leto izida: 2025
• PID: 20.500.12556/RUL-174260
• Datum objave v RUL: 30.09.2025

Sekundarni jezik

• Jezik: Angleški jezik
• Naslov: Comparison of the quality of photos taken with a smartphone and a DSLR camera

Izvleček

The thesis presents an experimental comparison of the quality of photos taken with the Xiaomi Note 14 Pro+ smartphone and the Canon 1D X Mark III digital SLR camera. The purpose of the thesis is to evaluate the influence of various technical parameters, such as sensor size, resolution, ISO sensitivity, and post-processing, on the quality of photos. In the practical part, shots were taken at different ISO values, both during the day and at night, and noise measurements were performed using standard deviation in Photoshop. A comparison was made of depth of field, differences between unprocessed RAW shots and automatically processed shots with the Digic X processor, and the effectiveness of various noise reduction algorithms, including Luminance and AI Denoise in Adobe Camera RAW. The results showed that a DSLR camera with a large sensor and RAW capture provides the highest image quality and the greatest control over details, depth of field, and colors. A smartphone with high resolution and advanced image processing algorithms can achieve comparable image clarity at high ISO values, but produces somewhat artificial and unnatural results. The use of different noise reduction algorithms represents a trade-off between image clarity and preserved detail. The work demonstrates the advantages of a professional camera in precise control and processing of photos, while also showing how modern smartphones with fast image processing algorithms can meet the visual and practical needs of capturing photos in various lighting conditions.

• Ključne besede: digital photography, smartphone, DSLR, RAW, Digic X, Luminance, AI Denoise